Can you please show me how to do this problem. (I will mark Brainliest)

Answer:
Sin A = 0.6896
Cos A = 0.7241
Tan A = 0.9524
Step-by-step explanation:
Using SOH-CAH-TOA
Sin A = Opposite / Hypotenous
= 20 / 29
= 0.6896
Cos A = Adjacent / Hypotenous
= 21 / 29
= 0.7241
Tan A = Opposite / Adjacent
= 20 / 21
= 0.9524