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Type: Multiple-Choice
Category: Trigonometry
Level: Grade 11
Standards: HSG-SRT.C.7
Author: nsharp1
Created: 4 years ago

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Trigonometry Question

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Grade 11 Trigonometry CCSS: HSG-SRT.C.7

ΔXYZ is a right triangle and ∠Y is a right angle. If cos(2X)=sin(X), what are the measures of the acute angles in this triangle?
  1. The angles measures are 30° and 60°.
  2. The angle measures are 22.5° and 45°.
  3. Only the measure of ∠X can be determined, and it is 30°.
  4. There is no such triangle.