Answer:
a = 7.6
Explanation:
We now angle A 31.7 and b = 4.7 To use the law of Sins we need to know angle B. The sum of the interior angles of a triangle is 180. We know two of the angles, we can figure out the third angle (Angle B). 180 -90 - 31.7 = 58.3
=
a =
a =7.6