Question

the circumference of the base of a cylinder is 176cm and it's height is 65cm. find its lateral surface area

Answer 1

Given
circumference of the base of cylinder = 176 cm
That is 2πr = 176
height of cylinder, h = 65 cm
LSA of cylinder = 2πrh
= 176 x 65
= 11440 cu cm

Answer 2

Formula:

Lateral surface area = 2πrh

Since 2πr is the circumference, we can write the formula as:

Lateral surface area = Circumference x height

Given that the circumference = 176 cm and the height = 65:

Lateral surface area = 176 x 65

Lateral surface area = 11440 cm²

Answer: The lateral surface area is 11440 cm²