The curved surface area of a cylinder 5cm high is 110cm2. Find the radius of its base
π = (frac{22}{7})
π = (frac{22}{7})
-
A.
2.6cm -
B.
3.5cm -
C.
3.6cm -
D.
7.0cm
Correct Answer: Option B
Explanation
Curved surface area of cylinder = 2πrh
110 = 2 × (frac{22}{7}) × r × 5
r = (frac{110 times 7}{44 times 5})
= 3.5cm
There is an explanation video available below.