Mathematics-Perimeter and Area [NSTSE (National Science Talent Search Exam- Unified Council) Class 7]: Questions 1 - 3 of 80

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Question number: 1

» Mathematics » Perimeter and Area

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Question

If the ratio of circumference of two circles is 16: 81, the ratio of their area is

Choices

Choice (4)Response

a.

256: 6561

b.

4: 9

c.

16: 81

d.

81: 16

Question number: 2

» Mathematics » Perimeter and Area

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The difference between the circumference and radius of a circle is 74 m. The circumference of that circle is

Choices

Choice (4)Response

a.

44 cm

b.

154 cm

c.

88 cm

d.

14 cm

Question number: 3

» Mathematics » Perimeter and Area

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In the given figure, ABCD is a parallelogram. and . If AB = 21 cm, BC = 14 cm and DM = 27 cm. Find DL.

Quadrilateral poly1Quadrilateral poly1: Polygon A, B, C, DSegment aSegment a: Segment [A, B] of Quadrilateral poly1Segment 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 [D, M] Segment gSegment g: Segment [D, L] Segment hSegment h: Segment [E, F] Segment iSegment i: Segment [F, G] Segment jSegment j: Segment [H, I] Segment kSegment k: Segment [I, J] Point AA = (6.98, -0.44) Point AA = (6.98, -0.44) Point AA = (6.98, -0.44) Point BB = (1.72, -0.44) Point BB = (1.72, -0.44) Point BB = (1.72, -0.44) Point CC = (0.52,2.56) Point CC = (0.52,2.56) Point CC = (0.52,2.56) Point DD = (5.62,2.54) Point DD = (5.62,2.54) Point DD = (5.62,2.54) Point MPoint M: Point on bPoint MPoint M: Point on bPoint MPoint M: Point on bPoint LPoint L: Point on aPoint LPoint L: Point on aPoint LPoint L: Point on a21 cmtext1 = “21 cm”14 cmtext1_1 = “14 cm”27 cmtext1_2 = “27 cm”

Image of a Parallelogram ABCD with Two Given Sides

Choices

Choice (4)Response

a.

12 cm

b.

19 cm

c.

18 cm

d.

16 cm

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