Question

Find the perimeter and area of the quadrilateral ABCD in which AB 17 cm, AD CD 21 cm, 4 ABC 90° and AC 15 cm.

Answer 1

Perimeter of quadrilateral ABCD = 17 + 9 + 12 + 8 = 46 cm ... NOW, for the area of the triangle, ACD ... area of quadrilateral ABCD= area of △ABC + area of △AC