IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 472 - 477 of 1042

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Question 472

Question

MCQ▾

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.

b.

c.

d.

Question 473

Question

MCQ▾

The number of surfaces in right circular cylinder is________.

Choices

Choice (4)Response

a.

1

b.

2

c.

3

d.

4

Question 474

Question

MCQ▾

If the area of a cylinder with radius r = 1 and height h = 2 is equal to area of a cone with radius r = 1 and height h, the height of the cone is________.

Choices

Choice (4)Response

a.

b.

c.

d.

Question 475

Question

MCQ▾

A quadrilateral whose one diagonal is 5.5 cm. If the length of altitudes from opposite vertices on the diagonal is 2.5 cm and 3.5 cm, then the area of quadrilateral is ________.

Choices

Choice (4)Response

a.

b.

c.

d.

Question 476

Question

MCQ▾

ABC is a right-angled triangle with . AH is drawn perpendicular to BC where H lies on BC. If AB = 30 cm and AC = 50 cm, then BH = ________.

Right-Angled Triangle ABC with AB = 30 Cm, AC = 50 Cm

Choices

Choice (4)Response

a.

50

b.

40

c.

42

d.

25

Question 477

Question

MCQ▾

A right cylindrical vessel is full with water, how many right cones having same diameter and height as that of right cylinder will be needed to store that water?

Choices

Choice (4)Response

a.

5

b.

3

c.

2

d.

4