Quadrilateral ABCD has vertices A(1,2), B(5,4), C(3,8) and D(−1,6).

MATHEMATICS · Multi-part · US High School · Geometry · Coordinate Geometry · Coordinate Geometry

Problem

Quadrilateral ABCD has vertices A(1,2), B(5,4), C(3,8) and D(−1,6). (i) Find the lengths of the four sides AB, BC, CD and DA. (ii) Find the lengths of the diagonals AC and BD. (iii) Show that ABCD is a square.

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