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.

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.

anonymous · Answer

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

anonymous · Answer

yes its really just a regular triangle

anonymous · Answer

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

anonymous · Answer

26.25?

anonymous · Answer

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

anonymous · Answer

okay what did you get?

anonymous · Answer

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

anonymous · Answer

oh I was doing the problem like a porportion

anonymous · Answer

could you help me with some more?

anonymous · Answer

No, you just solve for B

anonymous · Answer

so could you ?