Question

Mayank made a bird-bath for his garden in the shape of a cylinder with a hemispherical depression The height of the cylinder is 1.45 m and its radius is 30 cm. Find the total surface area of the bird-bath. (Take π = 22/7)​

Answer 1

Answer:

the total surface area of the figure is 33000cm².

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Step-by-step explanation:

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Answer 2

[HeY Mate]

Answer:

Question:

Mayank made a bird-bath for his garden in the shape of a cylinder with a hemispherical depression The height of the cylinder is 1.45 m and its radius is 30 cm. Find the total surface area of the bird-bath. (Take π = 22/7)

Solution:

Let h be the height of the cylinder

and r be the common radius of the cylinder and hemisphere.

Then,

the total surface area of the bird-bath = CSA of cylinder + CSA of the hemisphere

= 2πrh + 2πr^2

= 2π r(h + r)

= 2 (22/7) × 30 × (145 + 30) cm^2

= 33000 cm^2

= 3.3 m^2

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