IMO- Mathematics Olympiad Class 9: Questions 125 - 129 of 919

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Question number: 125

» Lines, Angles and Quadrilaterals

MCQ▾

Question

The angles of a triangle are in the ratio Equation . The triangle is ________

Choices

Choice (4) Response

a.

Isosceles

b.

Acute

c.

Obtuse

d.

Question does not provide sufficient data or is vague

Question number: 126

» Lines, Angles and Quadrilaterals

MCQ▾

Question

The given figure PQRS is a parallelogram then the values of Equation and Equation are________

Image is parallelogram

Image Is Parallelogram

Image is parallelogram and it’s define the angle values

Choices

Choice (4) Response

a.

45˚, 60˚

b.

70˚, 35˚

c.

35˚, 70˚

d.

60˚, 45˚

Question number: 127

» Lines, Angles and Quadrilaterals

MCQ▾

Question

In the figure, a is greater than b by one fifth of a right angle. Then a, b respectively are________

Image define a is greater than b by one fifth of a right angle

Image Define a Is Greater Than B by One Fifth of a Right Angle

Image define sthe right angle and find the value of a and b

Choices

Choice (4) Response

a.

120˚, 110˚

b.

50˚, 120˚

c.

130˚, 60˚

d.

99˚, 81˚

Question number: 128

» Lines, Angles and Quadrilaterals

MCQ▾

Question

In the figure, if Equation , then x = ________

Image defines the AB and CD is parallel lines

Image Defines the AB and CD Is Parallel Lines

Image defines the AB and CD is parallel lines and fined the value of x

Choices

Choice (4) Response

a.

60˚

b.

70˚

c.

45˚

d.

55˚

Question number: 129

» Triangles and Circles

MCQ▾

Question

In the adjoining figure, circles with centres at L, M and N each have a radius of 2 units and are placed as shown here. If PQRS is the smallest rectangle that will enclose the 3 circles, what is the area of PQRS?

image define in the adjoining figure,circles with centresL,M,N

Image Define in the Adjoining Figure, Circles With centresL, M, N

here in image define in the adjoining figure, circles with centres at L, M and N each have a radius of 2 units and are placed as shown here then find the area of PQRS

Choices

Choice (4) Response

a.

16 sq. units

b.

12 sq. units

c.

8 sq. units

d.

32 sq. units

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