Question

If the coordinates of the vertices of triangle abc are a(3, -2), b(7, -2) and c(5, 5), what is the area of the triangle?

10
14
20
28

Answer 1

B. 14

Explanation:

Area of a triangle:
`(1)/(2) bh`

Base of this triangle: 7-3= 4 (look at image below)

Height of this triangle: 5+2= 7 (look at image below)

`A=(1)/(2) (4)(7)\\A=(1)/(2) (28)\\A=14`

Hope this helps.