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

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## Question number: 715

Edit
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

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MCQ▾

Simplify:

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 717

Edit
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

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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

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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

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MCQ▾

Mirror image of

is ________.

### Choices

Choice (4)Response

a.

b.

c.

d.

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