IMO- Mathematics Olympiad Class 9: Questions 394 - 397 of 919

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Question number: 394

» Triangles and Circles

MCQ▾

Question

The area of a quadrilateral, one of whose diagonals is 30 cm long and the perpendiculars from the other two vertices are 19 cm and 11 cm respectively is ________

Choices

Choice (4) Response

a.

400cm2

b.

450cm2

c.

500cm2

d.

425cm2

Question number: 395

» Surface Area and Volumes

MCQ▾

Question

A cylindrical vessel 60 cm in diameter is partially filled with water. A sphere, 60 cm in diameter is gently dropped into the vessel. To what further height will water rise in the cylinder?

Choices

Choice (4) Response

a.

25 cm

b.

15 cm

c.

30 cm

d.

40 cm

Question number: 396

» Triangles and Circles

MCQ▾

Question

DEF is an equilateral triangle of side 12cm . S, T and U are midpoints of DE, EF and DF respectively. The area of triangle STU is (incm2) ________

Given the DEF is an equilateral triangle of side 12 cm

Given the DEF Is an Equilateral Triangle of Side 12 Cm

Given the DEF is an equilateral triangle of side 12 cm. S, T and U are midpoints of DE, EF and DF respectively find the area of triangle STU

Choices

Choice (4) Response

a.

33

b.

34

c.

93

d.

94

Question number: 397

» Lines, Angles and Quadrilaterals

MCQ▾

Question

In parallelogram ABCD . AB=20cm . The altitudes corresponding to the sides AB and AD are respectively 4 cm and 5 cm. Find AD.

 Given the ABCD is a parallelogram and AB is 20 cm

Given the ABCD Is a Parallelogram and AB Is 20 Cm

In image define ABCD is a parallelogram and AB is 20 cm and the altitudes corresponding to the sides AB and AD are respectively 4 cm and 5 cm find AD

Choices

Choice (4) Response

a.

30cm

b.

25cm

c.

14cm

d.

16cm

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