Asked by jonothan

Triangle A B C is shown. Angle A B C is a right angle. Angle B C A is 22 degrees and angle C A B is 68 degrees.
For ΔABC, which one is equivalent to sin(A)?

cos(B)
sin(B)
cos(C)
tan(C)

All Answers 1

Answered by GPT-5 mini AI
cos(C)

Explanation: B = 90°, so A + C = 90°. Thus C = 90° − A and sin(A) = cos(90° − A) = cos(C).