Triangles and Circles (IMO- Mathematics Olympiad Class 9): Questions 73 - 76 of 79

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Question number: 73

» Triangles and Circles

MCQ▾

Question

ABC is an equilateral triangle of side 43cm . P, Q and R are midpoints of AB, CA and BC respectively. The area of triangle PQR is (incm2) ________

ABC is an equilateral triangle.P, Q and R are midpoints

ABC Is an Equilateral Triangle. P, Q and R Are Midpoints

ABC is an equilateral triangle. P, Q and R are midpoints of AB, CA and BC respectively find the area of triangle PQR

Choices

Choice (4) Response

a.

33

b.

32

c.

23

d.

34

Question number: 74

» Triangles and Circles

MCQ▾

Question

In an isosceles triangle ABC, with AB=AC , the bisectors of B and C intersect each other at O. join A to O, then________

 Given the isosceles triangle ABC with AB=AC

Given the Isosceles Triangle ABC With AB = AC

Given the isosceles triangle ABC, with AB = AC, the bisectors of B and C intersect each other at O

Choices

Choice (4) Response

a.

OA=OC

b.

OB=OC

c.

OB=OA

d.

OB=AB

Question number: 75

» Triangles and Circles

MCQ▾

Question

In the adjoining figure, QS:SR=3:2 , then AreaofPQR:AreaofPSR is ________

Given the triangle PQR and ratio QS: SR equals 3: 2

Given the Triangle PQR and Ratio QS: SR Equals 3: 2

Given the triangle PQR and ratio QS: SR equals 3: 2 and find the ratio Area of triangle PQR and PSR

Choices

Choice (4) Response

a.

5:2

b.

3:5

c.

2:3

d.

3:2

Question number: 76

» Triangles and Circles

MCQ▾

Question

The locus of a point equidistant from the three sides of a triangle is ________

Choices

Choice (4) Response

a.

Circumcenter

b.

Centroid

c.

Incenter

d.

Orthocenter

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