IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 484 - 489 of 1042

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Question 484

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Question

MCQ▾

The surface areas of the six faces of a rectangular solid are 1,1, 9,9, 25 and 25 square centimeters. The volume of the solid, in cubic centimeters is________.

Choices

Choice (4)Response
a.
b.
c.
d.

Question 485

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Question

MCQ▾

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

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Choices

Choice (4)Response
a.
b.
c.
d.

Question 486

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Question

MCQ▾

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 kg
b.13.860 kg
c.12.11 kg
d.14.56 kg

Question 487

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Question

MCQ▾

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

Choices

Choice (4)Response
a.
b.
c.
d.

Question 488

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Question

MCQ▾

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

Choices

Choice (4)Response
a.Parabolic
b.Hyperbolic
c.Elliptic
d.Question does not provide sufficient data or is vague

Question 489

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Question

MCQ▾

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.
b.
c.
d.