The curved surface area of a cylinder 5cm high is 110cm2. Find the radius of its base π = 227

Answer Details

The curved surface area of a cylinder is given by the formula 2πrh, where r is the radius of the base and h is the height of the cylinder. We are given that the cylinder is 5 cm high and its curved surface area is 110 cm². Therefore, 2πrh = 110 Substituting the value of π as 22/7, we get: 2 x 22/7 x r x 5 = 110 Multiplying both sides by 7/22 and simplifying, we get: r = 3.5 Therefore, the radius of the base of the cylinder is 3.5 cm. Hence, the correct answer is option (B) 3.5cm.