Mensuration (IMO- Mathematics Olympiad Class 8): Questions 53 - 57 of 61

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Question number: 53

» Mensuration

MCQ▾

Question

In the given figure PQRS is a square inscribed in a circle with center O and radius r. The total area of shaded region is________.

 PQRS square is inscribed in a circle with center O andradius r

PQRS Square Is Inscribed in a Circle With Center O Andradius R

Find out total area of a shaded region of inscribing square in a circle

Choices

Choice (4) Response

a.

2r2(2π)

b.

π(r22)

c.

r2(π2)

d.

4r24r

Question number: 54

» Mensuration

MCQ▾

Question

The dimensions of an open box are 60 cm, 50 cm and 33 cm. Its thickness is 3 cm. If 1 cubic cm of metal used in the box weights 0.5 gm, find the weight of the box.

Choices

Choice (4) Response

a.

13.860 kg

b.

14.56 kg

c.

12.11 kg

d.

13 kg

Question number: 55

» Mensuration

MCQ▾

Question

The volume of a cube is 343 m2 , its surface area is________.

Choices

Choice (4) Response

a.

294m2

b.

286m2

c.

291m2

d.

290m2

Question number: 56

» Mensuration

MCQ▾

Question

A cylinder whose cross section is an ellipse is called ________ cylinder.

Choices

Choice (4) Response

a.

Elliptic

b.

Parabolic

c.

Hyperbolic

d.

All of the above

Question number: 57

» Mensuration

MCQ▾

Question

If a wire is bent into the shape of a square, then the area of the square is 64 sq. cm. When the wire is bent into a semicircular shape, then the area of the semi-circle will be________.

Choices

Choice (4) Response

a.

61cm2

b.

63cm2

c.

60cm2

d.

62cm2

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