# CBSE Class 10 Maths Surface Area: Combination of Solids

## Q.

The ratio of the lateral surface area to the total surface area of a cylinder with height h and radius r is

## Q.

The ratio of the curved surface area of a hemisphere to its total surface area is

## Q.

Which of the following is correct?

## Next Videos

- In cuboid the length of its diagonal is 5√5 and sum of its length breadth and depth is 19 than find it's TSA
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- a tent is in the shape of a right circular cylinder up to a height of 3 m and conical above it. the total height of the tent is 13.5 m and the radius of its base is 14m. find the cost of cloth required to make the tent at the rate of rs. 80 per metre.
- Acircus tent is cylindrical upto a height of 3.3m and conical above it. If the slant height and perpendicular height of conical part is 40 m and 24m respectively, then find the total canvas used in making a tent. Also find the cost of canvasing a tent at the rate of rs.12.5 per m sq. (II=3.14)
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- question no 13 part 1
- A circus tent consists of a cylindrical base surmounted by a conical roof. The radius of the cylinder is 20 m. The height of the tent is 63 m and that of the cylindrical base is 42 m. Find the area of the canvas used for making it.
- A solid is made of a cylinder with hemispherical ends. If the entire length of the solid is 108 cm and the diameter of the hemispherical ends is 36 cm, find the cost of polishing the surface of the solid at the rate of 7 paise per sq. cm.

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