Triangles and Circles (IMO- Mathematics Olympiad Class 9): Questions 17 - 22 of 79

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Question number: 17

» Triangles and Circles

MCQ▾

Question

What is the point of concurrency of the perpendicular bisectors in a triangle called ________.

Choices

Choice (4) Response

a.

Circumcentre

b.

Centroid

c.

Incentre

d.

Orthocentre

Question number: 18

» Triangles and Circles

MCQ▾

Question

The point of concurrency of the angle bisectors of a triangle is called ________.

Choices

Choice (4) Response

a.

Incentre

b.

Orthocentre

c.

Centroid

d.

Circumcentre

Question number: 19

» Triangles and Circles

MCQ▾

Question

From the adjoining figure, the value of x is ________.

Given the adjoining figure, find value of x

Given the Adjoining Figure, Find Value of X

In the adjoining figure and find value of x

Choices

Choice (4) Response

a.

60˚

b.

120˚

c.

90˚

d.

75˚

Question number: 20

» Triangles and Circles

MCQ▾

Question

Orthocenter of a triangle is the point of concurrency of its ________

Choices

Choice (4) Response

a.

Medians

b.

Altitudes

c.

Angle bisectors

d.

Perpendicular bisectors

Question number: 21

» Triangles and Circles

MCQ▾

Question

In the figure, PQ OE and PR OF , then QR ________

Given the PQ is parallel to OE and PR is parallel to OF

Given the PQ Is Parallel to OE and PR Is Parallel to Of

Given the PQ is parallel to OE and PR is parallel to OF, then find the QR parallel line

Choices

Choice (4) Response

a.

OR

b.

PF

c.

PQ

d.

EF

Question number: 22

» Triangles and Circles

MCQ▾

Question

An exterior angle of a triangle is 130˚ and one of the interior opposite angle is 45˚. Then the other two angles of a triangle are

Given the exterior angle of a triangle and interior angle

Given the Exterior Angle of a Triangle and Interior Angle

Given the exterior angle of a triangle is 130 and one of the interior opposite angle is 45 and fined the other two angles

Choices

Choice (4) Response

a.

90°,75°

b.

60°,65°

c.

85°,50°

d.

70°,45°

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