11. Four mark exercise problems III

1. Dhamu fixes a square tile of $30 \ cm$ on the floor. The tile has a sector design on it as shown in the figure. Find the area of the sector. $(\pi = 3.14)$

 

 

Answer:

 

Area of the sector $=$ $cm^2$ (approximately)

 

2. A circle is formed with $8$ equal granite stones as shown in the figure each of radius $56 \ cm$ and whose central angle is $45^{\circ}$. Find the area of each of the granite stones. $\left(\pi = \frac{22}{7}\right)$

 

 

Answer:

 

Area of the granite stones $=$ $cm^2$ (approximately)