Mathematics-Circles (NSTSE (National Science Talent Search Exam- Unified Council) Class 10): Questions 1 - 3 of 43

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Question number: 1

» Mathematics » Circles

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Question

The area of triangle with side ‘a’ is , where a = 6 cm. Then its altitude is

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 2

» Mathematics » Circles

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In the given figure and then is ________.

Triangle poly1 Triangle poly1: Polygon A, B, C Segment c Segment c: Segment [A, B] of Triangle poly1 Segment a Segment a: Segment [B, C] of Triangle poly1 Segment b Segment b: Segment [C, A] of Triangle poly1 Segment f Segment f: Segment [D, E] Point A A = (3.32,2.78) Point A A = (3.32,2.78) Point A A = (3.32,2.78) Point B B = (1.24, -0.6) Point B B = (1.24, -0.6) Point B B = (1.24, -0.6) Point C C = (5.48, -0.58) Point C C = (5.48, -0.58) Point C C = (5.48, -0.58) Point D Point D: Point on c Point D Point D: Point on c Point D Point D: Point on c Point E Point E: Point on b Point E Point E: Point on b Point E Point E: Point on b

Image of a Triangle ABC in Which DE∥BC

Representing the image of a triangle ABC in which DE∥BC and DE: BC = 4: 9

Choices

Choice (4) Response

a.

4: 9

b.

9: 4

c.

16: 81

d.

81: 16

Question number: 3

» Mathematics » Circles

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If the ratios of areas of two similar triangles are 9: 16 then the ratios of their corresponding angle – bisector segments is ________.

Choices

Choice (4) Response

a.

3: 4

b.

9: 16

c.

4: 3

d.

16: 9

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