a. Find the length of side b to two decimal places.
b.Find the length of side a to two decimal places.
cos 57 = .545 = adj/b = 6/b
.545 = 6/b
b = 11.02 units
You can use Pythagorean theorem to find a
or you can use sin 57 = a/b
.839 = a /11.02
a = 9.24 units