UNIT 3: RIGHT TRIANGLE TRIGONOMETRY Vocabulary Builder

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UNIT 3: RIGHT TRIANGLE TRIGONOMETRY Vocabulary Builder

Daily Agenda Similar Triangles Square Root leg Pythagorea n Theorem Simplest radical form 45-45-90 Triangle Hypotenus e Variable 30-60-90

Daily Agenda

Daily Agenda

UNIT 3: RIGHT TRIANGLE TRIGONOMETRY 3.1 Trigonometric Ratios

Daily 3.1 Agenda Trigonometric Ratio square root perfect square radical expression radicand perfect square

Daily 3.1 Agenda Trigonometric Ratio 5 30 8 18 14 23 Check for Understanding πŸ” 𝟐 2 10 3 3 πŸ“ πŸ‘

Daily 3.1 Agenda Trigonometric Ratio right triangle equals hypotenuse side lengths

Daily 3.1 Trigonometric Agenda Example 2/ Check for Understanding 13) 14) 2 2 4 8 π‘₯ 2 1 6 64 π‘₯ 2 8 0 π‘₯ 2 4 5 π‘₯ Ratio 15) 2 2 π‘₯2 3.9 2 112 2 π‘₯2 15.21 121 2 6 3 π‘₯ 3 6 9 π‘₯ 4 5 π‘₯ 2 3 5 π‘₯ π‘₯2 105.79 π‘₯ 10.29

Daily 3.1 Trigonometric Ratio Agenda We can use the Pythagorean Theorem to determine if 3 given numbers represent the sides of a right triangle. Example 3: A. 5, 5, 10 25 25 100 50 100 NO C. 6, 8, 10 B. 9, 12, 15 81 144 225 225 225 YES D. 4, 6,

Daily 3.1 Trigonometric Ratio Agenda Dividing into 2 Similar SubTriangles 𝑹𝑼𝑺 𝑺𝑼𝑻

Daily 3.1 Trigonometric Ratio Agenda Dividing into 2 Similar SubTriangles 15:39 :36 :15 36:39 :36 :15 15:36 : :

Daily 3.1 Trigonometric Ratio Agenda Dividing into 2 Similar SubTriangles 3. Use the values of the ratios you calculated to find the length of and

Daily 3.1 Agenda Trigonometric Ratio hypotenuse adjacent opposite

Daily 3.1 Trigonometric Agenda Example 4 π‘Œπ‘ π‘‹π‘Œ 𝑋𝑍 Ratio

Daily 3.1 Trigonometric Agenda Check for Understanding π»π‘ˆ π‘ˆπΌ 𝐻𝐼 Ratio

Daily 3.1 Trigonometric trigonometric ratio Agenda SOH CAH TOA right length acute Ratio

Daily Agenda

Daily 3.1 Trigonometric Agenda Example 5 SOH CAH TOA Ratio 𝑂𝑃𝑃 20 4 ΒΏ ΒΏ 𝐴𝐷𝐽 15 3 𝑂𝑃𝑃 16 8 ΒΏ ΒΏ 𝐴𝐷𝐽 30 15 𝑂𝑃𝑃 14 7 ΒΏ ΒΏ 24 48 𝐴𝐷𝐽 𝑂𝑃𝑃 15 3 ΒΏ ΒΏ π»π‘Œπ‘ƒ 25 5 𝑂𝑃𝑃 30 15 ΒΏ ΒΏ π»π‘Œπ‘ƒ 34 17 𝐴𝐷𝐽 48 24 ΒΏ ΒΏ π»π‘Œπ‘ƒ 50 25

5 Question Wrap-Up 1. The Pythagorean Theorem helps you solve for a missing of a triangle. 2. We apply the Pythagorean Theorem to triangles. 3. Simplify 4. Write the acronym used to trigonometric functions. 5. The only trig function that doesn’t use the hypotenuse is the function.

UNIT 3: RIGHT TRIANGLE TRIGONOMETRY 3.2 Finding Sides and Angles of Right Triangles

Daily 3.2 Missing Sides and Ang functions Agenda angle output input

Daily 3.2 Missing Sides and Ang Agenda x x 𝑂𝑃𝑃 sin 𝑅 π»π‘Œπ‘ƒ sin 19 π‘₯ 11 11 sin 19 π‘₯ 3.58 π‘₯ x 𝐴𝐷𝐽 𝑂𝑃𝑃 cos 𝐢 sin 𝐻 π»π‘Œπ‘ƒ π»π‘Œπ‘ƒ 19.2 11 cos 46 sin 34 π‘₯ π‘₯ 19.2 11 π‘₯ π‘₯ cos 46 sin 34 π‘₯ 27.64 π‘₯ 19.67

Daily 3.2 Missing Sides and Ang Check for Understanding Agenda x tan26 𝑂𝑃𝑃 𝐴𝐷𝐽 14.63 π‘₯ tan50 𝑂𝑃𝑃 𝐴𝐷𝐽 π‘₯ 15.49 𝑂𝑃𝑃 tan20 𝐴𝐷𝐽 π‘₯ 6.92

Daily 3.2 Missing Sides and Ang Agenda sin cos tan -1 -1 -1 Example 2 π‘‘π‘Žπ‘› π‘₯ 5 5 π‘‘π‘Žπ‘› π‘₯ 1 tan 1 (1 ) π‘₯ π‘‘π‘Žπ‘› π‘₯ tan 1 5 12 5 π‘₯ 12 ( ) 45 π‘₯ 22.6 π‘₯ π‘π‘œπ‘  π‘₯ cos 1 40 42 40 π‘₯ 42 ( ) 17.8 π‘₯

Daily 3.2 Missing Sides and Ang Example 3 Agenda cos 1 15 π‘₯ 28 ( ) 57.6 π‘₯ sin 1 19 π‘₯ 23 ( ) 55.7 π‘₯ cos 1 70 π‘₯ 86 ( ) 35.5 π‘₯

5 Question Wrap-Up 1. The side across from the discussed angle is called/labeled . 2. Simplify Show full break-down work. 3. Inverse trig functions help solve for missing . 4. Solve for x.

UNIT 3: RIGHT TRIANGLE TRIGONOMETRY 3.3 Sine and Cosine of Complementary Angles

3.3 Sine and Cosine of Complementary An Daily What am I learning Agenda today? 90 x G.SRT.7 Explain and use the relationship between the sine and cosine of complementary angles What am I going to do today? 180 90 complementary x Find the complement of sine and cosine How will I show you that I’ve learned it? 5 Question Daily Assessment Daily Ticket out the Door opposite angle cosine

3.3 Sine and Cosine of Complementary An Daily What am I learning Agenda today? G.SRT.7 Explain and use the relationship between the sine and cosine of complementary angles What am I going to do today? Find the complement of sine and cosine ΒΏπœπ¨π¬πŸπŸ” ¿𝐬𝐒𝐧 πŸ” ¿𝐬𝐒𝐧 πŸ“πŸ ΒΏπœπ¨π¬πŸ”πŸ” ΒΏπ¬π’π§πŸπŸ– ¿𝐜𝐨𝐬 πŸ’πŸ“ Check for Understanding How will I show you that I’ve learned it? 5 Question Daily Assessment Daily Ticket out the Door ΒΏπœπ¨π¬πŸ”πŸ– ¿𝐬𝐒𝐧 πŸπŸ“ ΒΏπ¬π’π§πŸ’πŸ” ΒΏπœπ¨π¬πŸ“πŸ– ¿𝐬𝐒𝐧 πŸ”πŸ“ ΒΏπœπ¨π¬πŸ•πŸ“

3.3 Sine and Cosine of Complementary An Daily Example 2 What am I learning Agenda today? G.SRT.7 Explain and use the relationship between the sine and cosine of complementary angles What am I going to do today? Find the complement of sine and cosine How will I show you that I’ve learned it? 5 Question Daily Assessment Daily Ticket out the Door πŸ’ πŸ“ πŸ‘ πŸ“ πŸ‘ πŸ“ πŸ’ πŸ“

3.3 Sine and Cosine of Complementary An Daily Example 2 continued What am I learning Agenda today? G.SRT.7 Explain and use the relationship between the sine and cosine of complementary angles What am I going to do today? Then m Q 60 Find the complement of sine and cosine How will I show you that I’ve learned it? 5 Question Daily Assessment Daily Ticket out the Door 𝟎.πŸ“ 𝟎.πŸ–πŸ”πŸ” 𝟎.πŸ–πŸ”πŸ” 𝟎 .πŸ“ Sin A and Cos B are the same which means the complement of sine and cosi equal.

3.3 Sine and Cosine of Complementary An Daily Example 3 What am I learning Agenda today? G.SRT.7 Explain and use the relationship between the sine and cosine of complementary angles What am I going to do today? 𝟎 . πŸ”πŸπŸ” πœπ¨π¬πŸ“πŸ Find the complement of sine and cosine How will I show you that I’ve learned it? 5 Question Daily Assessment Daily Ticket out the Door 𝐬𝐒𝐧 πŸ‘πŸŽ 𝟎 . πŸ“

3.3 Sine and Cosine of Complementary An Daily What am I learning Example 4 Agenda today? G.SRT.7 Explain and use the relationship between the sine and cosine of complementary angles What am I going to do today? Find the complement of sine and cosine πŸ“ πŸπŸ‘ πŸ“ πŸπŸ‘ How will I show you that I’ve learned it? 5 Question Daily Assessment Daily Ticket out the Door 𝟏𝟐 πŸ‘πŸ• 𝟏𝟐 πŸ‘πŸ• A 13 52 122 π‘₯2 5 2 5 144 π‘₯ 2 13 1 69 π‘₯ 2 13 π‘₯ C 12 B A 37 122 35 2 π‘₯2 2 1 44 1225 π‘₯ 1 369 π‘₯ 2 37 π‘₯ 35 H 37 12 T

3.3 Sine and Cosine of Complementary An Daily What am I learning Check for Understanding Agenda today? G.SRT.7 Explain and use the relationship between the sine and cosine of complementary angles What am I going to do today? Find the complement of sine and cosine How will I show you that I’ve learned it? 5 Question Daily Assessment Daily Ticket out the Door 10 πŸ’ πŸ“ πŸ’ πŸ“ 8 2 62 π‘₯ 2 6 4 36 π‘₯ 2 1 00 π‘₯ 2 10 π‘₯ T.O.T.D. Slide

UNIT 3: RIGHT TRIANGLE TRIGONOMETRY 3.4 Application of Trig

3.4 Solve Right Triangles using Daily Trigonometric Ratios What am I learning Agenda today? G.SRT.8 Use trigonometric ratios and the Pythagorean Theorem to solve triangles in applied problems What am I going to do today? Use the Pythagorean Theorem to Solve Right Triangles Use Trigonometric Ratios to Solve Right Triangles How will I show you that I’ve learned it? 5 Question Daily Assessment Daily Ticket out the Door solve side lengths angle The length of two sides The length of 1 side and 1 acute angle The length of 1 side and 1 trigonometric ratio

3.4 Solve Right Triangles using Daily Trigonometric Ratios What am I learning Agenda today? G.SRT.8 Use trigonometric ratios and the Pythagorean Theorem to solve triangles in applied problems What am I going to do today? Use the Pythagorean Theorem to Solve Right Triangles Use Trigonometric Ratios to Solve Right Triangles How will I show you that I’ve learned it? 5 Question Daily Assessment Daily Ticket out the Door 9.4 2 9. 4 19 71 3.12 8.9 2 π‘₯ 2 9 .61 79.21 π‘₯ 2 8 8.82 π‘₯ 2 9.42 π‘₯ tan 1 3.1 𝑃 8.9 ( ) 19.2 𝑃 R 90 – 19.2 70.8

3.4 Solve Right Triangles using Daily Trigonometric Ratios What am I learning Agenda today? G.SRT.8 Use trigonometric ratios and the Pythagorean Theorem to solve triangles in applied problems What am I going to do today? Use the Pythagorean Theorem to Solve Right Triangles Use Trigonometric Ratios to Solve Right Triangles How will I show you that I’ve learned it? 5 Question Daily Assessment Daily Ticket out the Door Example 2 sin 32 3.9 2 6.27 3.9 2 6.27 58 𝐡𝐢 7.4 3.92 𝐡𝐢 π‘₯2 3.9 2 7.4 2 π‘₯2 15.21 54.76 π‘₯2 39.55 π‘₯ 6.27 C 90 – 32 58

3.4 Solve Right Triangles using Daily Trigonometric Ratios What am I learning Agenda today? G.SRT.8 Use trigonometric ratios and the Pythagorean Theorem to solve triangles in applied problems What am I going to do today? Use the Pythagorean Theorem to Solve Right Triangles Use Trigonometric Ratios to Solve Right Triangles How will I show you that I’ve learned it? 5 Question Daily Assessment Daily Ticket out the Door angle of elevation angle of depression

3.4 Solve Right Triangles using Daily Trigonometric Ratios What am I learning Agenda today? G.SRT.8 Use trigonometric ratios and the Pythagorean Theorem to solve triangles in applied problems What am I going to do today? Use the Pythagorean Theorem to Solve Right Triangles Use Trigonometric Ratios to Solve Right Triangles How will I show you that I’ve learned it? 5 Question Daily Assessment Daily Ticket out the Door Example 3

3.4 Solve Right Triangles using Daily Trigonometric Ratios What am I learning Agenda today? G.SRT.8 Use trigonometric ratios and the Pythagorean Theorem to solve triangles in applied problems What am I going to do today? Use the Pythagorean Theorem to Solve Right Triangles Use Trigonometric Ratios to Solve Right Triangles How will I show you that I’ve learned it? 5 Question Daily Assessment Daily Ticket out the Door Check for Understanding

3.4 Solve Right Triangles using Daily Trigonometric Ratios What am I learning Agenda today? G.SRT.8 Use trigonometric ratios and the Pythagorean Theorem to solve triangles in applied problems What am I going to do today? Example 4 Use the Pythagorean Theorem to Solve Right Triangles Use Trigonometric Ratios to Solve Right Triangles How will I show you that I’ve learned it? 5 Question Daily Assessment Daily Ticket out the Door 618.75 ft

3.4 Solve Right Triangles using Daily Trigonometric Ratios What am I learning Agenda today? G.SRT.8 Use trigonometric ratios and the Pythagorean Theorem to solve triangles in applied problems What am I going to do today? Example 5 Use the Pythagorean Theorem to Solve Right Triangles Use Trigonometric Ratios to Solve Right Triangles How will I show you that I’ve learned it? 5 Question Daily Assessment Daily Ticket out the Door 991.86 ft

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