IMO- Mathematics Olympiad Class 9: Questions 402 - 406 of 919

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Question number: 402

» Surface Area and Volumes

MCQ▾

Question

The heights of two cones are in the ratio of 3: 8 and their radius in the ratio 5: 3. Then the ratio of their volumes is ________

Choices

Choice (4) Response
a.

15:24

b.

20:27

c.

27:20

d.

24:15

Question number: 403

» Triangles and Circles

MCQ▾

Question

PQRS is a cyclic Quadrilateral whose diagonals intersect at a point E. If SQR=70˚ , QPR=30˚ , PQ=QR , then ERS =________

PQRS is a cyclic Quadrilateral and intersect at a point E

PQRS Is a Cyclic Quadrilateral and Intersect at a Point E

PQRS is a cyclic Quadrilateral whose diagonals intersect at a point E, then find angle ERS

Choices

Choice (4) Response
a.

60°

b.

70°

c.

40°

d.

50°

Question number: 404

» Surface Area and Volumes

MCQ▾

Question

The area of rhombus is 12cm2 and one of its diagonals is 8 cm. its perimeter is ________

Choices

Choice (4) Response
a.

273cm

b.

473cm

c.

73cm

d.

2173cm

Question number: 405

» Surface Area and Volumes

MCQ▾

Question

The largest sphere is cut off from a cube of side 8 cm. the volume of the sphere will be ________

Choices

Choice (4) Response
a.

365πcm3

b.

256πcm3

c.

254π6cm3

d.

256π3cm3

Question number: 406

» Lines, Angles and Quadrilaterals

MCQ▾

Question

In parallelogram UVWX, UV=16cm The altitudes UY and WZ are respectively 14 cm and 15 cm. find UX.

UVWX is a parallelogram

UVWX Is a Parallelogram

UVWX is a parallelogram and UV is 16 cm, UY is 14 cm and WZ is 15 cm find UX

Choices

Choice (4) Response
a.

24014cm

b.

14240cm

c.

15224cm

d.

22415cm

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