Evaluating the Six Trigonometric Functions — Unit test Answers
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An acute triangle has side lengths 21 cm, x cm, and 2x cm. If 21 is one of the shorter sides of the triangle, what is the greatest possible length of the longest side, rounded to the nearest tenth?
A
18.8 cmB
24.2 cmC
42.0 cmD
72.7 cm22
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Triangle D E F is shown. Angle F D E is a right angle. The length of D E is 40, the length of D F is 9, and the length of hypotenuse F E is 41.
A
StartFraction 9 Over 41 EndFraction
B
StartFraction 40 Over 41 EndFraction
C
StartFraction 40 Over 9 EndFraction
D
StartFraction 41 Over 9 EndFraction
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