NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 252 - 254 of 2000

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Question number: 252

» Mathematics » Lines and Angles

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MCQ▾

Question

From the adjoining figure the value of x is

Triangle poly1 Triangle poly1: Polygon A, B, C Arc d Arc d: Semicircle through F and G Arc e Arc e: Semicircle through H and I 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 [C, D] Segment g Segment g: Segment [D, E] Point A A = (1.66,3.24) Point A A = (1.66,3.24) Point A A = (1.66,3.24) Point B B = (-2.44,0.02) Point B B = (-2.44,0.02) Point B B = (-2.44,0.02) Point C C = (0.36,0.02) Point C C = (0.36,0.02) Point C C = (0.36,0.02) Point D D = (2,0) Point D D = (2,0) Point D D = (2,0) Point E Point E: Point on b Point E Point E: Point on b Point E Point E: Point on b 20â° text1 = “20â°” 40â° text1_1 = “40â°” 60â° text1_2 = “60â°” yâ° text1_3 = “yâ°” xâ° text1_4 = “xâ°”

Image of an Adjoining Figure Making Two Unknown Angles

Representing the image of an adjoining figure making two unknown angles

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 253

» Chemistry » Matter

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MCQ▾

Question

The boiling point of a volatile liquid is ________

Choices

Choice (4) Response

a.

Cannot say

b.

Equal to room temperature

c.

Above room temperature

d.

Below room temperature

Question number: 254

» Mathematics » Circles

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Question

In the given figure, AOB and COD are two diameters of a circle with center O. If . Find .

Circle c Circle c: Circle through B with center O Arc d Arc d: Semicircle through E and F Segment f Segment f: Segment [B, A] Segment g Segment g: Segment [A, C] Segment h Segment h: Segment [C, D] Segment i Segment i: Segment [D, B] Point O O = (3.3,2.58) Point O O = (3.3,2.58) Point O O = (3.3,2.58) Point B B = (5.3,1.66) Point B B = (5.3,1.66) Point B B = (5.3,1.66) Point A Point A: Point on c Point A Point A: Point on c Point A Point A: Point on c Point C Point C: Point on c Point C Point C: Point on c Point C Point C: Point on c Point D Point D: Point on c Point D Point D: Point on c Point D Point D: Point on c 60â° text1 = “60â°”

Image of a Circle with Two Diameters AOB and COD

Representing the image of a circle with two diameters AOB and COD

Choices

Choice (4) Response

a.

b.

c.

d.

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