Triangles and Circles (IMO- Mathematics Olympiad (SOF) 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 ________.

Choices

Choice (4) Response

a.

b.

c.

d.

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, and , then

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

Choices

Choice (4) Response

a.

b.

c.

d.

f Page