Question

Find the area of shaded portion

• A. $90c{m}^2$
• B. $80c{m}^2$
• C. $110c{m}^2$
• D. $70c{m}^2$

Answer 1

The correct option is C $110c{m}^2$

Area of rectangle $=18\times 10$

$=180sqcm$

$\Rightarrow$ Triangle area $DEF=\frac{1}{2}\times 10\times 6$

$=30sqcm$

$\Rightarrow$ Triangle area $BCE=\frac{1}{2}\times 10\times 8$

$=40sqcm$

$\Rightarrow$ Area shaded region $=180-30-40$

$=110sqcm$

Hence, the answer is $110sqcm.$