Question

Find the area of the triangle whose vertices are
1.
(5,2) (3,-5) and (-5, -1)
2.
(6,-6), (3,-7) and (3, 3)

Answer 1

Step-by-step explanation:

using formula = 1/2[x(y2-y3)+x2(y3-y1)+x3(y1-y2)]

1. ½[5(-5+1)+3(-1-2)+-5(2+5)]

½[-20-9-35]

-64/2

=-32

2. ½[6(-7-3)+3(3+6)+3(-6+7)]

½[-60+27+3]

-30/2

=-15