Question

Prove that the points (2-2).(-2.1) and (5,2) are the vertices of a right angled triangle. Also find
he area of this triangle​

Answer 1

Area of triangle = 1/2 [x1 (y2-y3) + x2 (y3-y1) + x3

(y1-y2)]

= 1/2 [ (-2) + (-8) + (-15)]

= 1/2 (-25)

= 12.5

Explanation :-

1) Put values as per formula

2) Since area of triangle cannot be negative

Hence, at last step we make it positive.

Answer 2

Answer:

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