Question

The inner diameter of a circular well is 3.5m.it is 10m deep Find
I) it's inner curved surface area

Answer 1

I have written the answer in this photo.

Answer 2

≡QUESTION≡

The inner diameter of a circular well is 3.5m.it is 10m deep. Find

I) it's inner curved surface area

                                                     

║⊕ANSWER⊕║

Inner curve surface area = 2πrh

r = inner radius

h = height of well

Surface area = 2 x 22/7 x 3.5 x 10

                       =110 m²