Question

Find the area of the following quadrilateral ?

Answer 1

Area of quadrilateral $ABCD$

$=$ Area of $△ABC+$ Area of $△ACD$

$=\frac{1}{2}\times 5\times 2.5+\frac{1}{2}\times 1.2\times 5$

$=6.25+3=9.25c{m}^2$