sin B= 0.8
What is the length of AB?( right triangle ABC has a base, AC, of 12 with A on the left point and C on the right point of the base. AB is the hypotenuse and BC is the side.)

Question

sin B= 0.8 
What is the length of AB?( right triangle ABC has a base, AC, of 12 with A on the left point and C on the right point of the base. AB is the hypotenuse and BC is the side.)

alexwee123 · Answer

didn't i help you out with a problem like this like 5 minutes ago?

alexwee123 · Answer

since this is sin remember that sin=opposite over hypotenuse

alexwee123 · Answer

sine*

anonymous · Answer

i thought it looked familiar.

anonymous · Answer

lol yeah but i got stuck with a different one because it has a different measurement. I answered one on my own with your help from that problem i posted.

anonymous · Answer

i think its answer is 15

arnavguddu · Answer

sin B = height/hyp = AC/AB
but u know base, so find AC first.
Then, use pythagoras theorem, AB2=AC2+BC2
from this, BC2=AB2-AC2.
take square root of bc2, and u will find bc,
try it and reply????

anonymous · Answer

I got 14.976(15) would that be right? I turned .8 into a fraction 1.25/1.56=12/x= 18.72/1.25=15