Question

In the pictured triangle, ZA is 137 degrees and ZB is 28 degrees. If

side bis 71 units long, approximately how long is side a?

Answer 1

a would be 103.14 units approximately.

Explanation:

A=137

B=28

b=71

a=?

Using the formula

a/sinA=b/sinB

or, a/sin137=71/sin28

or, sin28a= sin137.71

or, sin28a=48.42

or, a=48.42/sin28

so, a = 103.14