Question

If the length of side a is 16 centimeters, the length of side b is 10 centimeters, and m∠A = 42°, what is the measure of ∠B ? Round your answer to two decimal places.

Answer 1

This is a triangle right? Do you have a diagram or anything?

Answer 2

yes its really just a regular triangle

Answer 3

Then use law of sines \[\frac{ \sin42 }{ 16 }=\frac{ sinB }{ 10 }\]

Answer 4

26.25?

Answer 5

Hmm, that's close, but not what I got.

Answer 6

okay what did you get?

Answer 7

sin(42)/16=0.0418206628974375
0.0418206628974375*10=0.418206628974375
asin(0.418206628974375)=24.72141615429

Answer 8

oh I was doing the problem like a porportion

Answer 9

could you help me with some more?

Answer 10

No, you just solve for B

Answer 11

so could you ?