Question

In the given figure, areas have been drawn of radius 21 cm each with vertices A,B,C, and D of quadrilateral ABCD as centres. Find the area in ${cm}^2$of the shaded region. [1 MARK]

Answer 1

Concept: 1 Mark

Area of the shaded region
$=4\times \frac{1}{4}\pi r^2$

$=\pi r^2$

$=\frac{22}{7}\times {21}^2$

$=1386c{m}^2$