Question

The vertices of a triangle are A (2,-5), B (5, 6), and C (7,-2). Find the area of triangle ABC​

Answer 1

Answer: 23 sq units

Step-by-step explanation:

use area of triangle formula:

1/2(x1(y2-y3)+x2(y3-y1)+x3(y1-y2))

1/2(2(6+2)+5(-2+5)+7(-5-6))

1/2(2(8)+5(3)+7(-11))

1/2(16+15-77)

1/2(31-77)

1/2(-46)=-23

but since area is always a positive number,

therefore are is 23 sq units

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