Mensurationeasy · Past Paper
Area of a circle is 314 sq. cm. What is its radius? (Use pi = 3.14)
A10 cm
B100 cm
C5 cm
D20 cm
✓ Correct Answer: A — 10 cm
314 = 3.14 * r^2 => r^2 = 100 => r = 10 cm.
Share this question
More from Mensuration
- The TSA of a cube is 24 sq. cm. Find its volume.
- A cube has a surface area of 150 cm^2. What is its volume?
- A cylindrical pipe has inner diameter 4 cm and outer diameter 4.4 cm. Length is 10 cm. Find the total surface area.
- Find the volume of the largest right circular cone that can be cut out of a cube whose edge is 9 cm.
- Find the volume of a right prism of height 12 cm whose base is a right-angled triangle with sides 3 cm and 4 cm.