IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 214 - 219 of 931

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Question 214

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Question

MCQ▾

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 215

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Question

MCQ▾

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

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Choices

Choice (4)Response
a.
b.
c.
d.

Question 216

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Question

MCQ▾

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

Loading image

Choices

Choice (4)Response
a.130˚
b.90˚
c.126˚
d.180˚

Question 217

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Question

MCQ▾

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

Loading image

Choices

Choice (4)Response
a.
b.
c.
d.

Question 218

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Question

MCQ▾

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

Loading image

Choices

Choice (4)Response
a.24
b.29
c.20
d.25

Question 219

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Question

MCQ▾

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