Question

Determine the sine of ∠A.

A)
12
13
B)
12
5
C)
5
12
D)
5
13
E)
13
12

Answer 1

A. 12/13

`sinA=(opp)/(adj)\\sinA=(12)/(13)\\sinA=0.92`

Answer 2

Explanation:

sin = opposite/hypotenuse

In this case

AB = hypotenuse

BC = opposite

sinA = BC/AB=12/13

so the correct answer is A