IMO- Mathematics Olympiad Class 9: Questions 125 - 129 of 919
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Question number: 125
» Lines, Angles and Quadrilaterals
Question
The angles of a triangle are in the ratio . The triangle is ________
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Isosceles |
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| b. | Acute |
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| c. | Obtuse |
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| d. | Question does not provide sufficient data or is vague |
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Question number: 126
» Lines, Angles and Quadrilaterals
Question
The given figure PQRS is a parallelogram then the values of and are________
Image Is Parallelogram
Image is parallelogram and it’s define the angle values
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 45˚, 60˚ |
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| b. | 70˚, 35˚ |
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| c. | 35˚, 70˚ |
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| d. | 60˚, 45˚ |
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Question number: 127
» Lines, Angles and Quadrilaterals
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 sthe right angle and find the value of a and b
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 120˚, 110˚ |
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| b. | 50˚, 120˚ |
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| c. | 130˚, 60˚ |
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| d. | 99˚, 81˚ |
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Question number: 128
» Lines, Angles and Quadrilaterals
Question
In the figure, if , then x = ________
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˚ |
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| b. | 70˚ |
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| c. | 45˚ |
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| d. | 55˚ |
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Question number: 129
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
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 |
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| b. | 12 sq. units |
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| c. | 8 sq. units |
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| d. | 32 sq. units |
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