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A wooden toy is in the form of a cone su...

A wooden toy is in the form of a cone surmounted on a hemisphere. The diameter of the base of the cone is 6cm and its height is 4cm. Find the cost of painting the toy at the rate of Rs. 5 per 1000cm

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To solve the problem step by step, we will calculate the total surface area of the wooden toy, which consists of a cone and a hemisphere, and then find the cost of painting it. ### Step 1: Identify the dimensions - The diameter of the base of the cone is given as 6 cm. - Therefore, the radius \( r \) of both the cone and the hemisphere is: \[ r = \frac{d}{2} = \frac{6}{2} = 3 \text{ cm} \] ...
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RD SHARMA ENGLISH-SURFACE AREA AND VOLUME OF A SPHERE -All Questions
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  9. A sphere, a cylinder and a cone are of the same radius and same hei...

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  10. Find the surface area and total surface area of a hemisphere of rad...

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  11. Find the surface area of a sphere of radius 7cm.

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  13. The internal and external diameters of a hollow hemi-spherical vesse...

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  15. Show that the surface area of a sphere is the same as that of the l...

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  16. A cone, a hemisphere and a cylinder stand on equal bases and have t...

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  17. The largest sphere is carved out of a cube of side 10.5 cm. Find the...

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  18. If the radius of a sphere is doubled, what is the ratio of the volu...

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  19. A spherical ball of lead 3cm in diameter is melted and recast into t...

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  20. Find the surface area of a sphere of radius 7cm.

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