IMO- Mathematics Olympiad Class 9: Questions 407 - 410 of 919

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Question number: 407

» Lines, Angles and Quadrilaterals

MCQ▾

Question

In the given figure, WXYZ is a rectangle. If YWX=30° , then the value of (J+K) is ________

Given the WXYZ is a rectangle and angle YWX is 30

Given the WXYZ Is a Rectangle and Angle YWX Is 30

Given the WXYZ is a rectangle and angle YWX is 30 and find the value of J + K

Choices

Choice (4) Response

a.

190˚

b.

140˚

c.

160˚

d.

180˚

Question number: 408

» Lines, Angles and Quadrilaterals

MCQ▾

Question

The area of trapezium VXYZ is ________

Given VXYZ is a trapezium

Given VXYZ Is a Trapezium

Given VXYZ is a trapezium finds the area

Choices

Choice (4) Response

a.

110cm2

b.

20cm2

c.

60cm2

d.

70cm2

Question number: 409

» Surface Area and Volumes

MCQ▾

Question

A spherical ball of lead, 9 cm in diameter is melted and recast into four spherical balls. The diameter of three of these are 3 cm, 2 cm, 2.5 cm is respectively. The radius of the fourth ball is________.

Choices

Choice (4) Response

a.

8.79 cm

b.

6.79 cm

c.

7.79cm

d.

5.79 cm

Question number: 410

» Lines, Angles and Quadrilaterals

MCQ▾

Question

In the adjoining figure, AP and BP are angle bisectors of A and B which meet at P of the parallelogram ABCD. Then 2APB=

Given ADCD is an adjoining figure and AP and BP are bisectors

Given ADCD Is an Adjoining Figure and AP and BP Are Bisectors

Given the AP and BP is angle bisectors of ∠Aand ∠B which meet at P of the parallelogram ABCD

Choices

Choice (4) Response

a.

A+B

b.

C+B

c.

B+D

d.

A+C

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