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Trigonometry Ch. 8 Practice Test Click the mouse after you try each question to see the correct answer.

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Find the geometric mean.

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Find the missing measures in reduced radical form. 6 5 x

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Use the 45-45-90 pattern to solve for x and y in reduced radical form. 19 x y y 9 x

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Use the 30-60-90 pattern to solve for x and y in reduced radical form. 30 y x y x 15 60

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Find the trig ratio from the picture provided in reduced fraction form and as a decimal to four decimal places. 21 15 16 C B A

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From an airplane, Janara looked down to see a city. If she looked down at an angle of 9 degrees and the airplane was half a mile above the ground, what was the horizontal distance to the city? 3.2 miles

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A section of freeway has a steady incline of 10 degrees. If the horizontal from the beginning of the incline to the end is 5 miles, how high does the incline reach?.9 miles

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Use law of sine to solve for all the missing pieces of the triangle. Round all measurements to the nearest tenth. a = 12.2 b = 10.9 ∠B = 48 ∠A = 54.9 ∠C = 77.1 c = 14.3

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Use law of cosine to solve for all the missing parts of the triangle. Round all measurements to the nearest whole. a = 19 b = 23.2 c = 21 ∠ A = 51 ∠ B = 72 ∠ C = 57

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