IMO- Mathematics Olympiad Class 9: Questions 123 - 127 of 919
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Question number: 123
» Lines, Angles and Quadrilaterals
Question
In figure PQ, RS and TU are three lines concurrent at A. If ∠PAU = 6y˚, ∠QAS = 4y˚ and ∠RAT = 2y˚, the value of y is________
Image PQ, RS and TU Are Three Lines Concurrent at A
Image PQ, RS and TU are three lines concurrent at A and find the value of y
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 15 |
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| b. | 25 |
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| c. | 30 |
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| d. | 20 |
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Question number: 124
» Lines, Angles and Quadrilaterals
Question
The complementary angle of an angle is one fourth of itself. Then the angle of its complement are________
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 45˚, 45˚ |
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| b. | 72˚, 18˚ |
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| c. | 60˚, 30˚ |
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| d. | 55˚, 35˚ |
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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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