Surface Areas and Volumes Quiz 10

Question 1

A regular square pyramid has its base edge 6 cm and height 5 cm. Then its volume is

Accepted Answer

$60\,cm^3$

Answer

$36\,cm^3$

Answer

$25\,cm^3$

Answer

$11\,cm^3$

Question 2

Volume of the cylinder formed by a sheet as shown in the given figure.

Accepted Answer

$1540\,cm^3$

Answer

$220\,cm^3$

Answer

$770\,cm^3$

Answer

$440\,cm^3$

Question 3

How does the total surface area of a box changed if each dimension is doubled?

Accepted Answer

T.S.A. of the box will become 4 times of original area.

Answer

T.S.A. of the box will become 3 times of original area.

Answer

T.S.A. of the box will become 6 times of original area.

Answer

T.S.A. of the box will become 8 times of original area.

Question 4

A rectangle of length 44 cm is folded along with its length and formed a cylinder. Then the radius of the cylinder (cms) is

Accepted Answer

7

Answer

44

Answer

22

Answer

11

Question 5

Find curved surface area of a cylinder having r = x cm and h = y cm.

Accepted Answer

$2\pi xy$

Answer

$2\pi x\,(x+y)$

Answer

$\pi x^2y$

Answer

$\pi xy$

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