Mathematics [NSTSE (National Science Talent Search Exam- Unified Council) Class 9]: Questions 187 - 190 of 989

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Question 187

Mathematics
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Question

MCQ▾

A regular decagon (10 sides) is inscribed in a circle. The angle that each side of the decagon subtends at the center is

Choices

Choice (4)Response

a.

b.

c.

d.

Question 188

Mathematics
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Question

MCQ▾

A, B, C are the three angles of a triangle. If , then are

Choices

Choice (4)Response

a.

b.

c.

d.

All of the above

Question 189

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Question

MCQ▾

The ratio of the perimeter of two squares is 5: 4. The ratio of their areas in the same order is ________.

Choices

Choice (4)Response

a.

25: 4

b.

4: 25

c.

4: 5

d.

25: 16

Question 190

Mathematics
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Question

MCQ▾

As shown in blow given figure of a circle. If the length of arc ABC is 24 cm then the length of arc ADC is

Choices

Choice (4)Response

a.

12 cm

b.

Cannot be determined from given data

c.

24 cm

d.

18 cm