Question

In △ABC, m∠A = α, m∠B = β, m∠C = γ. AB = c, AC = b, BC = a. Find the areas of the triangles if the following parts are given.

a=5, b=7, γ=31º

Answer 1

9514 1404 393

Answer:

9.01 square units

Explanation:

The area of the triangle is given by the formula ...

Area = 1/2ab·sin(C)

Area = (1/2)(5)(7)sin(31°) ≈ 9.01 . . . . square units