Question

Find the area of the triangle whose vertices are A (3, 8), B (-4, 2) and C (5, -1).

Answer 1

A(3, 8), B(-4, 2) and C(5, -1)

On further calculation

= 1/2 (63 + 12)

So we get

= 1/2 (75)

= 37.5 sq. units