Mathematics-Mensuration [NSTSE (National Science Talent Search Exam- Unified Council) Class 8]: Questions 1 - 8 of 101

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Question number: 1

» Mathematics » Mensuration

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Question

The area of a sector of a circle of radius 8 cm cut off by an arc which is 9.25 cm long is:

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 2

» Mathematics » Mensuration

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Question

The radius of a circle is 28 m, then the circumference of a circle is:

Choices

Choice (4)Response

a.

176 m

b.

14 m

c.

56 m

d.

84 m

Question number: 3

» Mathematics » Mensuration

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Question

If the ratio of circumference of two circles is 9: 4 the ratio of their area is:

Choices

Choice (4)Response

a.

81: 16

b.

4: 9

c.

3: 2

d.

16: 81

Question number: 4

» Mathematics » Mensuration

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Question

Each side of a cube is increased by 45%. Then the surface area of the cube increases by:

Choices

Choice (4)Response

a.

25%

b.

30%

c.

45%

d.

145%

Question number: 5

» Mathematics » Mensuration

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Question

If the altitude of an equilateral triangle is cm, its area is

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 6

» Mathematics » Mensuration

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Question

When the circumference and area of a circle are numerically equal, then the diameter is numerically equal to:

Choices

Choice (4)Response

a.

b.

Circumference

c.

Area

d.

4

Question number: 7

» Mathematics » Mensuration

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Question

A circular grass lawn of 63 m in radius has a path 7 m wide running around it on the outside. The area of the path is

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 8

» Mathematics » Mensuration

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Question

The circumference of a circle is 88 m, then the area of the circle is:

Choices

Choice (4)Response

a.

b.

c.

d.

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