Question

Find the area of triangle ABC. A. 14.45 units² B. 18.51 units² C. 13.76 units² D. 14.39 units²

Answer 1

C.
`13.76 units^2`

Explanation:

Given:

∆ABC,

m<A = 66.28°

m<B = 31.09°

AB = 7.6

BC = 7.01

Required:

Area of ∆ABC

SOLUTION:

Area = ½*AB*BC*sin(B)

`Area = (1)/(2)*7.6*7.01*sin(31.09)`

`Area = (1)/(2)*7.6*7.01*sin(31.09)`

`Area = 13.76 units^2`