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Subjects
Mathematics CBSE
Class 10
Surfaces Areas and Volumes
Surface Area of Combination of Solids

13. Answer the following

Exercise condition:

4 m.

The following is the sketch of a rocket.

If

$r_{1} =$ 12

$m$ ,

$h_{1} = 16$

$m$ ,

$r_{2} =$ 4

$m$ and

$h_{2} = 28$

$m$ , then answer the following:

1) The shape of rocket is the combination of ________.

a cone and a cuboid
a hemisphere and a cylinder
a cone and a cylinder

2) The slant height of the rocket is _______

$m$ .

16
12
20

3) The total surface area of the rocket is given by the formula ________ square units.

$2 \pi r (h + r)$ $+$ $\pi r (l + r)$ $+$ $\pi r^2$
$2 \pi r (h + r)$ $+$ $\pi r (l + r)$ $-$ $\pi r^2$
$2 \pi r h$ $+$ $\pi r l$ $+$ $\pi r^2$

4) The total surface area of the rocket is ________

$m^2$ .

1914.85
1912.85
1910.85

$1$

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