Question

find the lateral surface area of each of the following right circular cylinder following:
a) radius of base = 35 cm height = 12 cm
b) diameter of base = 12 cm and = 21 cm ​

Answer 1

Here are the answers.

Answer 2

hiyaaaa! good day and a googol x 10³ salutes for this great warm up question.

ok so :

(a) r = 35cm and h = 12cm

lateral surface area = 2πrh = 2 x 22/7 x 35 x 12 = 2 x 22 x 5 x 12 = 2640 cm²

and

(b) d = 12 (so r = 6cm ) and h = 21 cm

lateral surface area = 2πrh = 2 x 22/7 x 6 x 21 = 2 x 22 x 6 x 3 = 729cm²