Question

A park in the shape of a quadrilateral ABCD, has C=90° ,AB=9m,BC =12cm, CD =5m and AD=8m. How much area does it occupy ?

Answer 1

area of the quadrilateral park. =
60 m.sq + 16m.sq

= 76cm.sq

Answer 2

ar(triangleABC)=1/2X12X9=54
AC=15cm (pythagorus theorem and 12²+9²=15²)
area of ADC by herons formula