Question

Find the area of quadrilateral ABCD, given that AC = 10 m, $h_1$ = 4 m and $h_2$ = 2 m.

• A. 10 $m^2$
• B. 20 $m^2$
• C. 30 $m^2$
• D. 60 $m^2$

Answer 1

The correct option is C 30 $m^2$

Area of quadrilateral ABCD
= $\frac{1}{2}$$\times$[AC$\times$(h1+h2)]
= $\frac{1}{2}$$\times$[10$\times$(4+2)]
= $\frac{1}{2}$$\times$[10$\times$6] = $\frac{1}{2}$$\times$60 = 30 $m^2$