Question

Find the area of the triangle whose vertices are: (–5, –1), (3, –5), (5, 2)

Answer 1

Area of the given triangle = `1/2 [-5 { (-5)- (4)} + 3(2-(-1)) + 5{-1 - (-5)}]`

`= 1/2{35 + 9 + 20}`

= 32 square units