The curved surface area of a right circular cylinder of height 14 cm is 88 cm2. The diameter of the base of the cylinder is (Use \(\pi=\frac{22}{7}\))
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → 2 cm
The curved surface area of a cylinder is \(2\pi rh\): the side of the cylinder unrolls into a rectangle whose length is the base circumference \(2\pi r\) and whose breadth is the height \(h\).
\(\displaystyle 2\times\frac{22}{7}\times r\times14=88\)
\(88r=88\)
\(r=1\) cm, so the diameter \(=2r=2\) cm