Cube and Its Surface Area

Q. Volume of a hemisphere is 18000 $\mathrm{\pi }$ cubic cm. Find its diameter.

Q. Find the total surface area of a cube whose volume is $64m^3.$

1. $4m^2$
2. $96m^2$
3. $64m^2$
4. $24m^2$

Q.

find the volume of a right circular cone whose slant height is 13cm and the diameter of ase is 10cm

Q.

There is hollow cube. Its external edge is 5 cm long and its internal edge is 3 cm long. What is its surface area in $c{m}^2$ ?

1. 36

2. 150

3. 186

4. 114