Question

find the lateral surface area of two pillar of height of the pillar is 7 m and radius of the base is 1.4 m​

Answer 1

Step-by-step explanation:

forula to lateral surface area = 2πth

so area = 2*(22/7)*(1.4)*7=61.6m^2

above area is for one pillar

but 2 pillar area= 2*61.6=123.2 m^2