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Geometry Chapter 8

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We are familiar with the Pythagorean Theorem:

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For each triangle, use the Pythagorean theorem to find the length of the hypotenuse. Leave the answer in simplest radical form. 2 2 5 5 4 4

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solve for the missing sides – leave you answer in radical form.

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Homework: 420 (1-25) odd 428 (1-15) odd

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Warm Up

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For each pair of complementary angles ∠A and ∠B, there is a family of similar right triangles. In each family the ratio: is constant no matter the size of ∆ABC

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This trigonometric ratio is called the tangent ratio.

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One way to remember which ratio corresponds to each trig function is to remember the word: SOH-CAH-TOA SOH: sine opposite over hypotenuse CAH: cosine adjacent over hypotenuse TOA: tangent opposite over adjacent

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homework page 441 (1-16) all page 447 (1-14) all Chapter 8 test next week Tuesday/Wednesday

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Date: Topic: Trigonometric Ratios (9.5). Sides and Angles x The hypotenuse is always the longest side of the right triangle and is across from the right.

Date: Topic: Trigonometric Ratios (9.5). Sides and Angles x The hypotenuse is always the longest side of the right triangle and is across from the right.

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