Lines, Angles and Quadrilaterals (IMO- Mathematics Olympiad Class 9): Questions 54 - 58 of 126

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Question number: 54

» Lines, Angles and Quadrilaterals

MCQ▾

Question

The measure of an angle is three times the measure of its supplementary angle. Then the angles are________

Choices

Choice (4) Response

a.

28˚, 72˚

b.

26˚, 154˚

c.

50˚, 100˚

d.

45˚, 135˚

Question number: 55

» Lines, Angles and Quadrilaterals

MCQ▾

Question

In the given figure l1l2 . Which of the following must be true?

 Here in image define the l1 and l2 are parallel lines

Here in Image Define the l1 and l2 Are Parallel Lines

Here in image define the l1 and l2 are parallel lines finding the choice is true

Choices

Choice (4) Response

a.

b=c

b.

c=e

c.

f=b

d.

d=f

Question number: 56

» Lines, Angles and Quadrilaterals

MCQ▾

Question

If the bisectors of two adjacent angles A and B of a quadrilateral ABCD intersects at a point O such that C+D=kAOB , then value of k is ________

Image defines the bisectors of two adjacent angles A and B

Image Defines the Bisectors of Two Adjacent Angles a and B

Image defines the ABCD is quadrilateral and define two adjacent angles A and B intersect point O, find the value of k

Choices

Choice (4) Response

a.

3

b.

4

c.

5

d.

2

Question number: 57

» Lines, Angles and Quadrilaterals

MCQ▾

Question

XYZ is an equilateral triangle for side 85cm . J, K and L are midpoints of XY, YZ and XZ respectively. The area of triangle JKL is (in cm2 ) ________

XYZ is an equilateral triangle for side given

XYZ Is an Equilateral Triangle for Side Given

Image XYZ is an equilateral triangle, find the area of triangle is JKL

Choices

Choice (4) Response

a.

303

b.

203

c.

2032

d.

54

Question number: 58

» Lines, Angles and Quadrilaterals

MCQ▾

Question

The supplementary angle of an angle is one fifth of itself. Then the angle of its supplement are________

Choices

Choice (4) Response

a.

150˚, 30˚

b.

160˚, 20˚

c.

160˚, 130˚

d.

150˚, 45˚

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