Question

Use law of sins
A=42 degrees
a= 29 inches
b = 21 inches
Find B?

Answer 1

The law of sines states that a/(sin(A)) = b/(sin(B)) = c/(sin(C))

Can you figure it out from there? :)

Answer 2

I found B =29 degrees

Answer 3

but what is B' ?

Answer 4

when B = 29 degrees what is B' ?

Answer 5

29/sin(42) = 21/B
Solve for B

Answer 6

You already found the anser B=28.98
~29

Answer 7

yeah but

Answer 8

what is B with the apostrophe means ?

Answer 9

This is the conventional oblique triangle diagram. You have solved for B. The lowercase letters represent the sides and the uppercase are the angles.