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Mayank made a bird-bath for his garden in the shape of a cylinder with a hemispherical depression at one end. The height of the cylinder is 1.45\( \mathrm { m } \) and its radius is 30\( \mathrm { cm } \) . Find the total surface area o. the bird-bath 1.45\( \mathrm { m } \) \( - 7 \)

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Q1
Mayank made a bird-bath for his garden in the shape of a cylinder with a hemispherical depression 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.
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Q2
Mayank made a bird-bath for his garden in the shape of cylinder with a hemispherical depression at one end as shown in figure. The height of the hollow cylinder is 1.45 m and its radius is 30 cm. Find the total surface area of the bird-bath. (Take π=22/7)
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Q3
A bird bath for garden is in the shape of a cylinder with a hemispherical depression at one end (see figure). 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= 227 )
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Q4
Mark the correct option.
Assertion(A): If we join two hemispheres of same radius along their bases, then we get a sphere.
Reason(R): A tank is made of the shape of a cylinder with a hemispherical depression at one end. The height of the cylinder is 𝟏.𝟒𝟓 𝐦 and radius is 𝟑𝟎 𝐜𝐦. The total surface area of the tank is 𝟑.𝟑 𝐦2.

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Q5

There is a solid cylinder of base radius 5 cm and height 10 cm. From one of the flat ends of the solid cylinder a hemispherical depression having same radius as cylinder is hollowed out. What is the total surface area (in sq.cm) of this new solid?


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