+0

# help

0
49
1

Find a.
Round to the nearest tenth

Apr 26, 2020

#1
+1116
+1

Look at the hint: Law of Sines!

angle B is 12 degrees and side b is 10 cm, so the ratio of sin B to b is $$\frac{\sin 12}{10}$$.

This is 0.02079 (you need a calculator)

Can you now find side length a? angle A is 150 degrees, so do 0.02079=sin150/a and solve for a.

You are very welcome!

:P

Apr 26, 2020