IMO Level 1- Mathematics Olympiad (SOF) Class 7: Questions 715 - 720 of 1022

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Question number: 715

» Perimeter and Area

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MCQ▾

Question

I’m going to place a rope around perimeter of our school playground that is in the shape of an octagon. The sides are 10 m, 10 m, 8 m, 8m, 5m, 5 m, 9 m, 9 m. How many meters of rope will be needed for the perimeter?

Choices

Choice (4) Response

a.

164 m

b.

38 m

c.

138 m

d.

64 m

Question number: 716

» Algebraic Expressions

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MCQ▾

Question

Simplify:

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 717

» Data Handling

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MCQ▾

Question

A ludo die is rolled, then the probability that the number of dots on its upper face is less than 4 is ________.

Choices

Choice (4) Response

a.

b.

c.

1

d.

0

Question number: 718

» Symmetry and Visualizing Solid Shapes

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MCQ▾

Question

After rotating by about a center, a figure looks exactly the same as at its original position. At what other angle will this happen for the figure?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 719

» Perimeter and Area

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MCQ▾

Question

The area of two circles are in the ratio 25: 36. Then the ratio of their circumference is ________.

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 720

» Symmetry and Visualizing Solid Shapes

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MCQ▾

Question

Mirror image of

Polygon poly1 Polygon poly1: Polygon [A, B, 4] Polygon poly1 Polygon poly1: Polygon [A, B, 4] Polygon poly2 Polygon poly2: Polygon [E, F, 4] Polygon poly2 Polygon poly2: Polygon [E, F, 4] Segment f Segment f: Segment [A, B] of Polygon poly1 Segment g Segment g: Segment [B, C] of Polygon poly1 Segment h Segment h: Segment [C, D] of Polygon poly1 Segment i Segment i: Segment [D, A] of Polygon poly1 Segment j Segment j: Segment [E, F] of Polygon poly2 Segment k Segment k: Segment [F, G] of Polygon poly2 Segment l Segment l: Segment [G, H] of Polygon poly2 Segment m Segment m: Segment [H, E] of Polygon poly2 Segment n Segment n: Segment [K, L] Segment p Segment p: Segment [M, N] Segment p_1 Segment p_1: Segment [M_1, N_1] Segment p_2 Segment p_2: Segment [M_2, N_2] Segment p_3 Segment p_3: Segment [M_3, N_3] Segment p_4 Segment p_4: Segment [M_4, N_4] Segment p_5 Segment p_5: Segment [M_5, N_5] Segment p_6 Segment p_6: Segment [M_6, N_6] Segment p_7 Segment p_7: Segment [M_7, N_7] Segment p_8 Segment p_8: Segment [M_8, N_8] Segment p_9 Segment p_9: Segment [M_9, N_9] Segment p_ {10} Segment p_ {10}: Segment [M_ {10}, N_ {10} ] Segment p_ {11} Segment p_ {11}: Segment [M_ {11}, N_ {11} ] Segment p_ {12} Segment p_ {12}: Segment [M_ {12}, N_ {12} ] Segment p_ {13} Segment p_ {13}: Segment [M_ {13}, N_ {13} ] Segment p_ {14} Segment p_ {14}: Segment [M_ {14}, N_ {14} ] Segment p_ {15} Segment p_ {15}: Segment [M_ {15}, N_ {15} ] Vector u Vector u: Vector [I, J] Vector u Vector u: Vector [I, J]

Image of a Box Having a Diamond and Arrow Shapes

Showing an image of a box having a diamond and arrow shapes, so find its mirror image

is ________.

Choices

Choice (4) Response

a.

Polygon poly1 Polygon poly1: Polygon [A, B, 4] Polygon poly1 Polygon poly1: Polygon [A, B, 4] Polygon poly2 Polygon poly2: Polygon [E, F, 4] Polygon poly2 Polygon poly2: Polygon [E, F, 4] Segment f Segment f: Segment [A, B] of Polygon poly1 Segment g Segment g: Segment [B, C] of Polygon poly1 Segment h Segment h: Segment [C, D] of Polygon poly1 Segment i Segment i: Segment [D, A] of Polygon poly1 Segment j Segment j: Segment [E, F] of Polygon poly2 Segment k Segment k: Segment [F, G] of Polygon poly2 Segment l Segment l: Segment [G, H] of Polygon poly2 Segment m Segment m: Segment [H, E] of Polygon poly2 Vector u Vector u: Vector [I, J] Vector u Vector u: Vector [I, J]

Image of a Box Having a Diamond and Arrow Shapes: Choice A

Showing an image of a box having a diamond and arrow shapes, find the true mirror image of question figure

b.

Polygon poly1 Polygon poly1: Polygon [A, B, 4] Polygon poly1 Polygon poly1: Polygon [A, B, 4] Polygon poly2 Polygon poly2: Polygon [E, F, 4] Polygon poly2 Polygon poly2: Polygon [E, F, 4] Segment f Segment f: Segment [A, B] of Polygon poly1 Segment g Segment g: Segment [B, C] of Polygon poly1 Segment h Segment h: Segment [C, D] of Polygon poly1 Segment i Segment i: Segment [D, A] of Polygon poly1 Segment j Segment j: Segment [E, F] of Polygon poly2 Segment k Segment k: Segment [F, G] of Polygon poly2 Segment l Segment l: Segment [G, H] of Polygon poly2 Segment m Segment m: Segment [H, E] of Polygon poly2 Vector u Vector u: Vector [K, L] Vector u Vector u: Vector [K, L]

Image of a Box Having a Diamond and Arrow Shapes: Choice B

Showing an image of a box having a diamond and arrow shapes, find the true mirror image of question figure

c.

Polygon poly1 Polygon poly1: Polygon [A, B, 4] Polygon poly1 Polygon poly1: Polygon [A, B, 4] Polygon poly2 Polygon poly2: Polygon [E, F, 4] Polygon poly2 Polygon poly2: Polygon [E, F, 4] Segment f Segment f: Segment [A, B] of Polygon poly1 Segment g Segment g: Segment [B, C] of Polygon poly1 Segment h Segment h: Segment [C, D] of Polygon poly1 Segment i Segment i: Segment [D, A] of Polygon poly1 Segment j Segment j: Segment [E, F] of Polygon poly2 Segment k Segment k: Segment [F, G] of Polygon poly2 Segment l Segment l: Segment [G, H] of Polygon poly2 Segment m Segment m: Segment [H, E] of Polygon poly2 Vector u Vector u: Vector [K, L] Vector u Vector u: Vector [K, L]

Image of a Box Having a Diamond and Arrow Shapes: Choice C

Showing an image of a box having a diamond and arrow shapes, find the true mirror image of question figure

d.

Polygon poly1 Polygon poly1: Polygon [A, B, 4] Polygon poly1 Polygon poly1: Polygon [A, B, 4] Polygon poly2 Polygon poly2: Polygon [E, F, 4] Polygon poly2 Polygon poly2: Polygon [E, F, 4] Segment f Segment f: Segment [A, B] of Polygon poly1 Segment g Segment g: Segment [B, C] of Polygon poly1 Segment h Segment h: Segment [C, D] of Polygon poly1 Segment i Segment i: Segment [D, A] of Polygon poly1 Segment j Segment j: Segment [E, F] of Polygon poly2 Segment k Segment k: Segment [F, G] of Polygon poly2 Segment l Segment l: Segment [G, H] of Polygon poly2 Segment m Segment m: Segment [H, E] of Polygon poly2 Vector u Vector u: Vector [K, L] Vector u Vector u: Vector [K, L]

Image of a Box Having a Diamond and Arrow Shapes: Choice D

Showing an image of a box having a diamond and arrow shapes, find the true mirror image of question figure