IMO- Mathematics Olympiad Class 9: Questions 444 - 448 of 919

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Question number: 444

» Surface Area and Volumes

MCQ▾

Question

The volume of the largest circular cone that can be cut of a cube whose edge is 10 cm is ________

Choices

Choice (4) Response
a.

261.90cm3

b.

361.90cm3

c.

261.90cm3

d.

461.90cm3

Question number: 445

» Surface Area and Volumes

MCQ▾

Question

The largest sphere is cut off from a cube of side 12 cm. the volume of the sphere will be ________

Choices

Choice (4) Response
a.

288πcm3

b.

154π6cm3

c.

230πcm3

d.

270πcm3

Question number: 446

» Surface Area and Volumes

MCQ▾

Question

The altitude drawn to the base of an isosceles triangle is of length 12 cm and the perimeter is 96 cm. the area of the triangle is ________

Choices

Choice (4) Response
a.

320cm2

b.

270cm2

c.

408cm2

d.

560cm2

Question number: 447

» Triangles and Circles

MCQ▾

Question

In an isosceles triangle ABC, with AB=AC , the bisectors of B and C intersect each other at O. join A to O, then________

 Given the isosceles triangle ABC with AB=AC

Given the Isosceles Triangle ABC With AB = AC

Given the isosceles triangle ABC, with AB = AC, the bisectors of B and C intersect each other at O

Choices

Choice (4) Response
a.

OA=OC

b.

OB=OC

c.

OB=OA

d.

OB=AB

Question number: 448

» Triangles and Circles

MCQ▾

Question

In the adjoining figure, QS:SR=3:2 , then AreaofPQR:AreaofPSR is ________

Given the triangle PQR and ratio QS: SR equals 3: 2

Given the Triangle PQR and Ratio QS: SR Equals 3: 2

Given the triangle PQR and ratio QS: SR equals 3: 2 and find the ratio Area of triangle PQR and PSR

Choices

Choice (4) Response
a.

5:2

b.

3:5

c.

2:3

d.

3:2

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