Question

3. Find the area of the shaded region.
20 m
7 m
7 m
20 m
7 m
7 m​

Answer 1

Answer:

246sq.m

Step-by-step explanation:

Area of the total square region is 20m x 20m = 400sq.m

According to the figure, the unshaded regions are equal in area having a radius of 7m

And the 4 unshaded region forms a circle with radius 7 m.

So, total area of unshaded region = $\pi 7^{2}$ = $\frac{22}{7} .49$ = 154sq.m

Therefore, total area of shaded region = (400 - 154)sq.m = 246sq.m

I hope it will help you!

Thank You!

Answer 2

Answer:

$\pi r {}^{2}$

$22 \div 7 \times 7 {}^{2}$

$= 22 \div 7 \times 49$

$= 154m {}^{2}$

Step-by-step explanation:

Area of square

$= l {}^{2}$

$= (20) {}^{2}$

$= 400m {}^{2}$

-Area of unshaded region

$400m {}^{2} - 154m {}^{2}$

$346m {}^{2}$