Geometryhard · Past Paper
The difference between the circumference and radius of a circle is 37 cm. Find the area.
A154 sq cm
B44 sq cm
C308 sq cm
D77 sq cm
✓ Correct Answer: A — 154 sq cm
2*pi*r - r = 37 => r(2*22/7 - 1) = 37 => r(37/7) = 37 => r = 7 cm. Area = 154 sq cm.
Share this question
More from Geometry
- If an angle is 275 degrees, what type of angle is it?
- What is the reflex angle of 120 degrees?
- If an angle is 2/3 of a right angle, what is its measure?
- The exterior angle of a triangle is equal to the sum of:
- Find the area of a sector of a circle with radius 6 cm if the angle of the sector is 60 degrees.