ACT Math 5.5 Trigonometry

ACT Math: Trigonometry Drill 5, Problem 5. What is the length of side z?

ACT Math	Trigonometry
ACT Mathematics	Trigonometry
Foreign Language	Arabic Subtitled Chinese Subtitled Korean Subtitled Spanish Subtitled
Geometry	Right Triangles and Trigonometry
Language	English Language
Product Type	ACT Math
Trigonometry	SOHCAHTOA (values and properties of trig functions) Solving right triangles Trigonometric relations in right triangles

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the angle. Okay... Pythagorean Theorem time.

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Five squared plus twelve squared equals z squared.

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25 plus 144 equals z squared.

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169 equals z squared.

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Taking the square root of both sides, we get that 13 equals z, which means B is the correct

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answer. Oh, and one last thing.

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5, 12, 13 is a common right triangle that you should memorize for the test. Don't let

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it ambush you on test day.