NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 19 - 20 of 2000

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Question number: 19

» Mathematics » Quadrilaterals

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In the parallelogram ABCD, . The altitudes corresponding to the sides AE and CF are respectively 6 cm and 16 cm. Find BC.

Quadrilateral poly1Quadrilateral poly1: Polygon A, B, C, DSegment aSegment a: Segment [A, B] of Quadrilateral poly1Segment bSegment b: Segment [B, C] of Quadrilateral poly1Segment cSegment c: Segment [C, D] of Quadrilateral poly1Segment dSegment d: Segment [D, A] of Quadrilateral poly1Segment fSegment f: Segment [A, E] Segment gSegment g: Segment [C, F] Point AA = (0.63,3.85) Point AA = (0.63,3.85) Point AA = (0.63,3.85) Point BB = (5.11,3.84) Point BB = (5.11,3.84) Point BB = (5.11,3.84) Point CC = (4.43,1.22) Point CC = (4.43,1.22) Point CC = (4.43,1.22) Point DD = (-0.04,1.25) Point DD = (-0.04,1.25) Point DD = (-0.04,1.25) Point EPoint E: Point on cPoint EPoint E: Point on cPoint EPoint E: Point on cPoint FPoint F: Point on dPoint FPoint F: Point on dPoint FPoint F: Point on d6 cmtext1 = “6 cm”16 cmtext1_1 = “16 cm”18 cmtext1_2 = “18 cm”

Image of a Parallelogram ABCD in Which AB = 18 Cm

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 20

» Mathematics » Lines and Angles

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An angle which is more than and less than is called

Choices

Choice (4)Response

a.

Complete angle

b.

Obtuse angle

c.

Right angle

d.

Reflex angle

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