IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 214 - 219 of 929

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Question number: 214

» Lines, Angles and Quadrilaterals

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MCQ▾

Question

Diagonals of a rectangle ABCD intersect at O. if , then ∠DCO is ________

Choices

Choice (4)Response

a.

70˚

b.

55˚

c.

35˚

d.

110˚

Question number: 215

» Lines, Angles and Quadrilaterals

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MCQ▾

Question

In the given figure, BO, CO is angle bisectors of external angles of △ABC. Then BOC is ________

Image defines the angle

Image Defines the Angle

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 216

» Lines, Angles and Quadrilaterals

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MCQ▾

Question

In the figure below, lines XY and MN intersect at O. if and , then are equal to ________

Image defines lines XY and MN intersect at O

Image Defines Lines XY and MN Intersect at O

Choices

Choice (4)Response

a.

130˚

b.

90˚

c.

126˚

d.

180˚

Question number: 217

» Triangles and Circles

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MCQ▾

Question

Triangle PAB is formed by three tangents to circle with center O and , then angle ACB equals ________

Triangle PAB is formed by 3 tangents to circle with center O

Triangle PAB is Formed by 3 Tangents to Circle with Center O

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 218

» Triangles and Circles

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MCQ▾

Question

An exterior angle of a triangle is and the measure of the two remote interior angles are 25 degree and degree. x = ________.

The exterior angle of a triangle and 2 interior angles measure

The Exterior Angle of a Triangle and 2 Interior Angles Measure

Choices

Choice (4)Response

a.

24

b.

29

c.

20

d.

25

Question number: 219

» Surface Area and Volumes

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MCQ▾

Question

The number of spherical bullets each 0.6 cm in diameter be made out of a rectangular solid is ________

Choices

Choice (4)Response

a.

10250

b.

10200

c.

10500

d.

10550

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