Answer:
7
Step-by-step explanation:
Answer:
a. 12/37
Step-by-step explanation:
The mnemonic SOH CAH TOA reminds you ...
Sin = Opposite/Hypotenuse
sin(A) = BC/AB = 12/37
Using Estimation, by rounding 21 down to 20 and 88 up to 90, answer A would be the correct option.