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Areas of Combination of Plane Figures

In the given ...

Question

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.

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Solution

Height (h) of the frame of lampshade = (2.5 + 30 + 2.5) cm = 35 cm

Radius (r) of the circular end of the frame of lampshade =

Cloth required for covering the lampshade = 2πrh

= 2200 cm²

Hence, for covering the lampshade, 2200 cm² cloth will be required.

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Q. Question 10
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.

[A s s u m e π = \frac{22}{7}]

Q. Question 10
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.

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In the figure, you see the frame of a lampside. It is to be covered with a decorative cloth. The frame has a base diameter of $20 c m$ and height of $30 c m$ . A margin of $2.5 c m$ 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.

Q. In the 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. How much cloth is required for making lampshade?

Q. In 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 an bottom of the frame. Find area of cloth required for covering the lampshade.

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Areas of Combination of Plane Figures

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