Mensuration (IMO- Mathematics Olympiad Class 8): Questions 35 - 40 of 61

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Question number: 35

» Mensuration

MCQ▾

Question

Three solid cubes of sides 1 cm, 6 cm and 8 cm are melted to form a new cube. Find the surface area of the cube so formed.

Choices

Choice (4) Response
a.

486cm2

b.

411cm2

c.

481cm2

d.

423cm2

Question number: 36

» Mensuration

MCQ▾

Question

The ratio of areas of two squares, one having triple its diagonals than the other is________.

Choices

Choice (4) Response
a.

5: 3

b.

2: 3

c.

2: 9

d.

9: 1

Question number: 37

» Mensuration

MCQ▾

Question

The ratio of areas of two squares, one having double its diagonals than the other is________.

Choices

Choice (4) Response
a.

9: 1

b.

2: 9

c.

2: 3

d.

4: 1

Question number: 38

» Mensuration

MCQ▾

Question

Three cubes whose edges are 1 cm, 6 cm, and 8 cm respectively are melted without any loss of metal into a single cube. The edge of new cube is________.

Choices

Choice (4) Response
a.

7cm

b.

9cm

c. 8cm
d.

1cm

Question number: 39

» Mensuration

MCQ▾

Question

What is the ratio of the perimeter of the shaded region to the circumference of the circle?

A circle with center O is given

A Circle With Center O Is Given

Find out the ratio of the perimeter of the shaded region to the circumference of the circle

Choices

Choice (4) Response
a.

2+ππ

b.

2π4π

c.

2+π4π

d.

2+π2π

Question number: 40

» Mensuration

MCQ▾

Question

A quadrilateral whose one diagonal is 4 cm. If the length of altitudes from opposite vertices on the diagonal is 2.5 cm and 1.5 cm, then the area of quadrilateral is ________.

Choices

Choice (4) Response
a.

8m2

b.

9m2

c.

10m2

d.

11m2

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