Home
Class 9
MATHS
In the given figure, you see the frame o...

In the given figure, you see the frame of a lampshade. It is to be covered with a decorative cloth. The frame has a base diameter of 20 cm and height of 30 cm. A margin of 2.5 cm is to be given for folding it over the top and bottom of the frame. Find how much cloth is required for covering the lampshade.

Text Solution

Verified by Experts

The correct Answer is:
2200 `cm^(2)`
Promotional Banner

Topper's Solved these Questions

  • SURFACE AREAS AND VOLUMES

    KUMAR PRAKASHAN|Exercise EXERCISE 13.3|8 Videos
  • SURFACE AREAS AND VOLUMES

    KUMAR PRAKASHAN|Exercise EXERCISE 13.4|9 Videos
  • SURFACE AREAS AND VOLUMES

    KUMAR PRAKASHAN|Exercise EXERCISE 13.1|8 Videos
  • STATISTICS

    KUMAR PRAKASHAN|Exercise MULTIPLE CHOICE QUESTIONS|12 Videos
  • TRIANGLES

    KUMAR PRAKASHAN|Exercise SUMS TO ENRICH REMEMBER|9 Videos

Similar Questions

Explore conceptually related problems

A heap of rice is in the form of a cone of diameter 12 cm and height 8 cm . Find its volume ? How much canvas cloth is required to cover the heap ? (Use pi=3.14 )

A wooden bookshelf has external dimensions as follows : Height = 110 cm, Depth = 25 cm, Breadth = 85 cm (see the given figure). The thickness of the plank is 5 cm everywhere. The external faces are to be polished and the inner faces are to be painted. If the rate of polishing is 20 paise per cm^(2) and the rate of painting is 10 paise per cm^(2) , find the total expenses required for polishing and painting the surface of the bookshelf.

The outer measurements of a cuboidal tank are length 5 m, breadth 4 m and height 2 m. Square tiles of length 20 cm are to be fixed on its outer surfaces except the base. Find the number of tiles required. Find the cost of tiles if a box of 10 tiles costs Rs. 250.

A ladder has rungs 25 cm apart. (see the given figure). The rungs decrease uniformly in length from 45 cm at the bottom to 25 cm at the top. If the top and the bottom rungs are 2(1)/(2) m apart, what is the length of the wood required for the rungs?

A corn cob (see the given figure), shaped somewhat like a cone, has the radius of its broadest end as 2.1 cm and length (height) as 20 cm. If each 1 cm^(2) of the surface of the cob carries an average of four grains, find how many grains you would find on the entire cob.

A wooden toy rocke is in the shape of a cone mounted on a cylinder, as shown in the given figure. The height of the entire rocket is 26 cm, while the height of the conical part is 6 cm, the base of the concial protion has a diameter of 5 cm, while the base diameter ofthe cylinderical protion is 3 cm. if the concial portion is tobe painted organe and the cylinderical portion yellow. Find the area of the rocke painted with each of these colours. (Take pi=3.14)

The students of Vidyalaya were asked to participate in a competition for making and decorating penholders in the shape of a cylinder with a base, using cardboard. Each penholder was to be of radius 3 cm and height 10.5 cm. The Vidyalaya was to supply the competitors with cardboards. If there were 35 competitors, how much cardboard was required to be bought for the competition ?

An open metal bucket is in the shape of a frustum of a conce. Mounted on a hollow cylinderical base made of the same metallic sheet (see the given figure) the diameters of the two circular ends of the bucket are 45 cm and 25 cn. The vertical height of the bucket is 40 cm and that of the cylinderical base is 6 cm. find the area of the metallic sheet used to make the bucket, hwere we do not tak einto account the handle of the bucket. also, find the volu8me of water the bucket can hold (Take pi=(22)/(7))

The pillars of a temple are cyclindrically shaped (see the given figure). If each pillar has a circular base of radius 20 cm and height 10 m, how much concrete mixture would be required to build 14 such pillars ?