The circumference of the base of a solid right circular cylinder is 132 cm and…
2026
The circumference of the base of a solid right circular cylinder is 132 cm and its height is 60 cm. What is the volume (in cm3) of the cylinder?
Take π = 22/7.
Answer: A. 83160 — CONCEPTFor a right circular cylinder, the base circumference and volume are C = 2πr and V = πr2h. First find the radius from the circumference, then use that…
- A.
83160
- B.
82654
- C.
82995
- D.
82681
Attempted by 10 students.
Show answer & explanation
Correct answer: A
CONCEPT
For a right circular cylinder, the base circumference and volume are C = 2πr and V = πr2h.
First find the radius from the circumference, then use that radius with the height in the volume formula. All dimensions must use the same unit.
APPLICATION
Let r be the radius in centimetres. From C = 2πr, write 132 = 2 × (22/7) × r.
Solve for the radius: r = (132 × 7)/44 = 21 cm.
Use the cylinder-volume formula: V = πr2h.
Substitute the known values: V = (22/7) × 212 × 60.
Simplify in order: V = 22 × 63 × 60 = 1,386 × 60 = 83,160 cm3.
CROSS-CHECK
The recovered radius gives circumference 2 × (22/7) × 21 = 132 cm, matching the given value.
The base area is (22/7) × 212 = 1,386 cm2; multiplying by height 60 cm gives 83,160 cm3.
Therefore, the cylinder volume is 83,160 cm3.