Question

Which equation can be solved to find one of the missing side lengths in the triangle?

Answer 1

Answer: d

Step-by-step explanation: i got 100% on quiz

Answer 2

cos(60°) = a/12

Explanation:

Cosine = adjacent / hypotenuse, where the hypotenuse is 12 units.

"a" is adjacent to ∅, so a/12 = cos(60°).