What is true for△DEF, if ∠F is a right angle? A
sinD=cosD because the ratio is the same for each angle in any right triangle.

B
sinD=cosE because the opposite leg for ∠D is the same as the adjacent leg for ∠E.

C
sinD=cosE because the adjacent leg for ∠D is the same as the opposite leg for ∠E.

D
sinD=cosD because the opposite leg and the adjacent leg are the same length in the triangle.