Mensurationmedium · Past Paper
Area of a quadrant of circle is 154 sq. cm. Find its radius.
A14 cm
B7 cm
C21 cm
D28 cm
✓ Correct Answer: A — 14 cm
0.25 * pi * r^2 = 154 => pi * r^2 = 616 => r^2 = 196 => r = 14 cm.
Share this question
More from Mensuration
- What is the area of a square with a side length of 8 cm?
- A cylinder has a base radius of 5 cm and height of 14 cm. Find its volume.
- Find the surface area of a sphere that just fits inside a cylinder of radius 'r' and height '2r'.
- A right circular cone has a slant height of 5 cm and height of 4 cm. Its volume is:
- The area of an isosceles right-angled triangle whose hypotenuse is 10 cm is: