Question

1. Solve the triangle.
AABC, given ZB = 57°, ZC = 720,
and b = 18 m.

Answer 1

Angle A= 61°

Explanation:

angle A+ Angle B+Angle C= 180°( Angle sum property)

∠A+57+72= 180°

∠A= 180°- 127°= 61°