Question

I have no idea how to calculate sinb can someone please help me? Thanks in advance.

Answer 1

bear in mind that, the opposite side to an angle, is the side that's "facing off" the angle, so if you put your "eye" on the ∡b, the side you'll see inside will be the "36" side, and the hypotenuse is always the slanted side, and the other is the adjacent side.

so depending on the angle, 36 is either opposite or adjacent, or 48 is opposite or adjacent.

Check the picture below.

Answer 2

Im not so sure anymore so sorry but I got 0.51428

Explanation:

Because you are looking for sinb, you would have to use SOH, or sin=opposite over hypotenuse

You are already given sine, or b, so you would set b equal to 36 over 70.

You would divide and get 0.5142857143

I'm not sure if this is entirely correct