A rocket is in the form of a circular cylinder closed at the lower end and a cone of the same radius is attached to the top. The radius of the cylinder is 2.5 m and its height is 21 m. Also, the slant height of the cone is 8 m. The total surface area of the rocket is

313.5 m²

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500 m²

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412.5 m²

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200 m²

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Solution

The correct option is C
412.5 m²

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Similar questions

Q. A rocket is in the form of a circular cylinder closed at the lower end with a cone of the same radius attached to the top. The cylinder is of radius

2.5 m

and height

21 m

and the cone has the slant height

8 m

. Calculate the total surface area and the volume of the rocket.

A rocket is in the form of a circular cylinder closed at the lower end and a cone of the same radius is attached to the top. The radius of the cylinder is 2.5 m, its height is 21 m and the slant height of the cone is 8 m. Calculate the total surface area of the rocket.

Q. Question 14
A rocket is in the form of a right circular cylinder closed at the lower end and surmounted by a cone with the same radius as that of the cylinder. The diameter and height of the cylinder are 6 cm and 12 cm, respectively. If the the slant height of the conical portion is 5 cm, find the total surface area and volume of the rocket [Use