NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 24 - 25 of 2000

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Question number: 24

» Mathematics » Circles

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Question

AB is a chord of a circle of radius 3.4 cm and P is a point on it which divided it into two parts in the ratio 3: 5. If P is 2.7 cm distant from the center O, the length of AB is

Choices

Choice (4) Response

a.

4.24 cm

b.

9.16 cm

c.

5.9 cm

d.

2.12 cm

Question number: 25

» Mathematics » Lines and Angles

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In the adjoining figure, the value of is

Triangle poly1 Triangle poly1: Polygon A, B, C Triangle poly2 Triangle poly2: Polygon D, E, F 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] of Triangle poly2 Segment d Segment d: Segment [E, F] of Triangle poly2 Segment e Segment e: Segment [F, D] of Triangle poly2 Point A A = (0.22,2.48) Point A A = (0.22,2.48) Point A A = (0.22,2.48) Point B B = (-2.46, -0.68) Point B B = (-2.46, -0.68) Point B B = (-2.46, -0.68) Point C C = (2.82, -0.74) Point C C = (2.82, -0.74) Point C C = (2.82, -0.74) Point D D = (-2.46,1.38) Point D D = (-2.46,1.38) Point D D = (-2.46,1.38) Point E E = (3.02,1.46) Point E E = (3.02,1.46) Point E E = (3.02,1.46) Point F F = (0.14, -1.84) Point F F = (0.14, -1.84) Point F F = (0.14, -1.84)

Image of a Figure like Star Made by Some Triangles

Representing the image of a figure like star made by some triangles

Choices

Choice (4) Response

a.

b.

c.

d.

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