Question

Mayank made a nice bird-bath for his garden in the shape of a cylinder with a hemispherical depresstion at one end. The height of the cylinder is 1.45m and its radius is 30cm. Find the total surface area of the bird bath.​

Answer 1

Answer:

Hey mate

Refer to the attachment.....

✌

Answer 2

Step-by-step explanation:

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Let r be the common radius of the cylinder and hemisphere and h be the height of the hollow cylinder.

Then r=30cm;h=1.45m=145cm

Total surface are of the bird-bath = curved surface area of the cylinder + curved surface area of the hemisphere

=2πrh+2πr

2

=2π(h+r)

=2×

7

22

×30(145+30)cm

2

=3.3m

2