Question

Find the area of the triangle. Round the answer to the nearest tenth. Triangle is SSA. a= 3.7 b= 3.7 β= 70° ----- A.4.4 square units B.5.2 square units C.6.8 square units D.8.8 square units

Answer 1

A. 4.40 square units

Explanation:

The triangle is isosceles with base angles of 70°. The a.pex angle will be ...

180° -2(70°) = 40°

The area of a triangle can be computed from two sides and the angle between them as ...

A = (1/2)ab·sin(γ)

A = (1/2)(3.7)(3.7)sin(40°) ≈ 4.40 . . . square units