NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 72 - 73 of 2000

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Question number: 72

» Mathematics » Circles

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MCQ▾

Question

AB is a chord of a circle with center O and radius 5 cm. If and . Find the length of chord AB.

Choices

Choice (4) Response

a.

16 cm

b.

28 cm

c.

4 cm

d.

8 cm

Question number: 73

» Mathematics » Quadrilaterals

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In the given figure AO and DO are the bisectors of and of the quadrilateral ABCD. Then the is

Quadrilateral poly1 Quadrilateral poly1: Polygon A, B, C, D Arc e Arc e: Semicircle through G and H Arc h Arc h: Semicircle through I and J Segment a Segment a: Segment [A, B] of Quadrilateral poly1 Segment b Segment b: Segment [B, C] of Quadrilateral poly1 Segment c Segment c: Segment [C, D] of Quadrilateral poly1 Segment d Segment d: Segment [D, A] of Quadrilateral poly1 Segment f Segment f: Segment [D, E] Segment g Segment g: Segment [A, F] Point A A = (1.96,1.58) Point A A = (1.96,1.58) Point A A = (1.96,1.58) Point B B = (3.03,4.4) Point B B = (3.03,4.4) Point B B = (3.03,4.4) Point C C = (-0.71,4.33) Point C C = (-0.71,4.33) Point C C = (-0.71,4.33) Point D D = (-1.55,1.6) Point D D = (-1.55,1.6) Point D D = (-1.55,1.6) Point O Point O: Intersection point of f, g Point O Point O: Intersection point of f, g Point O Point O: Intersection point of f, g 100â° text1 = “100â°” 75â° text1_1 = “75â°”

Image of a Quadrilateral ABCD

Representing the image of a quadrilateral ABCD in which AO and DO are the bisectors of ∠A and ∠D

Choices

Choice (4) Response

a.

b.

c.

d.

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