IMO- Mathematics Olympiad Class 8: Questions 443 - 447 of 1029

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Question number: 443

» Mensuration

MCQ▾

Question

Between a square of perimeter 64 cm and a circle of circumference 64 cm, which figure has larger area and by how much?

Choices

Choice (4) Response
a.

Circle, 70 cm2

b.

Circle, 60 cm2

c.

Square, 70 cm2

d. None of the above

Question number: 444

» Mensuration

MCQ▾

Question

A square garden measuring 5 m on a side is surrounded by a 1 m wide path. What is the area of the path?

 A square garden with 5 m side surrounded by 1 m wide path

a Square Garden With 5 M Side Surrounded by 1 M Wide Path

Find out area of a path of a square garden using given measure

Choices

Choice (4) Response
a.

20m2

b.

14m2

c.

24m2

d.

25m2

Question number: 445

» Mensuration

MCQ▾

Question

The radii of the bases of two cylinders are in the ratio of 3: 4 respectively and their heights are in the ratio 4: 5 respectively, find the ratio of their volumes.

Choices

Choice (4) Response
a.

20: 3

b.

20: 9

c.

9: 20

d.

3: 20

Question number: 446

» Mensuration

MCQ▾

Question

A rectangle field has its length and breadth in the ratio 2: 3. Its area is 3.80 hectares. The cost of fencing it at Rs. 2 per meter is________.

Choices

Choice (4) Response
a.

Rs 1000

b.

Rs 1600

c.

Rs 1100

d.

Rs 1500

Question number: 447

» Mensuration

MCQ▾

Question

ABC is a right angled triangle with BAC=90° . AH is drawn perpendicular to BC where H lies on BC. If AB = 40 cm and AC = 60 cm, then BH = ________.

Right-angled triangle ABC with AB = 40 cm, AC = 60 cm

Right-Angled Triangle ABC With AB = 40 Cm, AC = 60 Cm

Find out BH of a right-angled triangle ABC using given measure when AH is perpendicular to BC

Choices

Choice (4) Response
a.

25

b.

50

c.

30

d.

40

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