For with vertices

MATHEMATICS · Subjective · CBSE · Mathematics · Coordinate Geometry · Coordinate Geometry

Problem

For △DEF\triangle DEF with vertices D(−3,2)D(-3,2), E(1,5)E(1,5) and F(4,−1)F(4,-1), find its semi-perimeter (half the perimeter). Leave the answer in simplest radical form.

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