Question

The area of figure 1 (in $c{m}^2$​) and area of figure 2 (in $c{m}^2$​) are __ and __ respectively.

• A. $21c{m}^2$, $21c{m}^2$
• B. $11c{m}^2$, $10c{m}^2$
• C. $41c{m}^2$, $41c{m}^2$
• D. $31c{m}^2$, $35c{m}^2$

Answer 1

The correct option is A

$21c{m}^2$, $21c{m}^2$

Area of trapezium $=h\frac{(a+b)}{2}$ sq. units

$=\frac{1}{2}\times (8+6)\times 3=21c{m}^2$

Area of triangle $=\frac{1}{2}\times b\times h=\frac{1}{2}\times 14\times 3=21c{m}^2$