Triangles and Circles (IMO- Mathematics Olympiad Class 9): Questions 46 - 48 of 79

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Question number: 46

» Triangles and Circles

MCQ▾

Question

Triangle PAB is formed by three tangents to circle with center O and APB=40˚ , then angle AOB equals ________

Given the Triangle PAB is formed by three tangents to circle

Given the Triangle PAB Is Formed by Three Tangents to Circle

Given Triangle PAB is formed by three tangents to circle with center O then find the angle AOC equals value

Choices

Choice (4) Response

a.

55°

b.

45°

c.

50°

d.

70°

Question number: 47

» Triangles and Circles

MCQ▾

Question

A, B, C and D are four points on a circle. AC and BD intersect at a point E such that BEC=130˚ and ECD=20˚ , then angle BAC is ________

Given the A, B, C and D are four points on a circle

Given the a, B, C and D Are Four Points on a Circle

A, B, C and D are four points on a circle. AC and BD intersect at a point E such that angle BEC = 130 and ECD is 20 then find angle BAC

Choices

Choice (4) Response

a.

90˚

b.

120˚

c.

100˚

d.

110˚

Question number: 48

» Triangles and Circles

MCQ▾

Question

In XYZ Y=64°,Z=36° , and the bisector of YXZ meets YZ at P. then the ascending order of sides is ________

In triangle XYZ, angle Y and Z are 64 and 36 respectively

In Triangle XYZ, Angle Y and Z Are 64 and 36 Respectively

In triangle XYZ, angle Y and Z are 64 and 36 respectively, and the bisector of YXZ meets YZ at P find the ascending order of sides

Choices

Choice (4) Response

a.

YZ,XY,XZ

b.

XY,YZ,XZ

c.

YZ,XZ,XY

d.

XY,XZ,YZ

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