Question

Find the area of the triangle with A = 60°, b = 11 feet, and c = 8 feet. Round to the nearest tenth.

Answer 1

Area = 38.1 ft² (nearest tenth)

Explanation:

Use sine rule for area of a triangle:

Area = (1/2)ab sin(C)

= (1/2)bc sin(A)

= (1/2) x 11 x 8 x sin(60)

= 22√3

= 38.1 ft² (nearest tenth)