Question

The circumference of the base of a right circular cylinder is 176cm.If the height of the cylinder is 1m,find the L.S.A of a cylinder.

Answer 1

Height=h=1 m
h= 100 cm
Circumference = 176 cm
(Always convert all dimentions to one unit form, here I will be using centimeter)

Circumference of base=2pi×r=176
LSA of cylinder = 2pi×r×h
LSA=2pi×r×h
LSA=(2pi×r)×h
LSA=(176)×h
LSA=176*100
LSA=17600 cm²
LSA=1. 76 m² - - - - - - - - - (1m²=10000cm²)

Question looks like it is a Multiple Choice Question(MCQ), Choose the answer with appropriate unit either 17600cm² or 1.76m²