Question

Verify that the triangle whose vertices are given by the points (−2, 1), (2, 3) and (3, 1) is a
right triangle. Find its area.

Answer 1

U can see that the hypoteneuse is 5.

Use distance formula to get lengths of other 2 sides.

Verify a right triangle using Pythagorus on these values.

Area is half base * height.