NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 138 - 140 of 2000

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Question number: 138

» Mathematics » Circles

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Question

In the following figure if O is the center of the circle, then find x.

Circle cCircle c: Circle through B with center OArc dArc d: Semicircle through D and EArc eArc e: Semicircle through F and GSegment fSegment f: Segment [A, O] Segment gSegment g: Segment [O, B] Segment hSegment h: Segment [A, C] Segment iSegment i: Segment [C, B] Point OO = (3.26,2.9) Point OO = (3.26,2.9) Point OO = (3.26,2.9) Point BB = (4.74,1.18) Point BB = (4.74,1.18) Point BB = (4.74,1.18) Point APoint A: Point on cPoint APoint A: Point on cPoint APoint A: Point on cPoint CPoint C: Point on cPoint CPoint C: Point on cPoint CPoint C: Point on c108â°text1 = “108â°”xâ°text1_1 = “xâ°”

Image of a Circle with Center O and Unknown Angle X

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Choice (4)Response

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d.

Question does not provide sufficient data or is vague

Question number: 139

» Mathematics » Areas of Parallelograms and Triangles

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The area of a trapezium is . The distance between its parallel sides is 2 cm. If one of the parallel sides is 3.5 cm, the other parallel side is ________.

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Choice (4)Response

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d.

Question number: 140

» Mathematics » Lines and Angles

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From the adjoining figure from a linear pair and . Then a, b are

Arc eArc e: Semicircle through I and FArc cArc c: Semicircle through E and GSegment fSegment f: Segment [A, B] Segment gSegment g: Segment [C, D] Point AA = (-0.46,0.54) Point AA = (-0.46,0.54) Point AA = (-0.46,0.54) Point BB = (6.46,0.52) Point BB = (6.46,0.52) Point BB = (6.46,0.52) Point CPoint C: Point on fPoint CPoint C: Point on fPoint CPoint C: Point on fPoint DD = (2.3,3.72) Point DD = (2.3,3.72) Point DD = (2.3,3.72) btext1 = “b”atext1_2 = “a”

Image of Two Adjoining Angles a and B

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Choice (4)Response

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