Answer:
B
Step-by-step explanation:
sin=opposite/Hypotonouse
80²+60²=hyp²
hyp=100
sinФ=60/100=3/5
b. 3/5
Using the pythagorean theorem, side AB is 100 m long.
Sine equals opposite over hypotenuse. In this case CB (60) is the opposite and AB (100) is the hypotenuse.
Sine for angle A = 60/100 = 3/5
