IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 105 - 111 of 929
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Question number: 105
» Lines, Angles and Quadrilaterals
Question
How many sides does a regular polygon have, each angle of which is of measure 108˚?
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 7 | |
b. | 8 | |
c. | 5 | |
d. | 6 | |
Question number: 106
» Lines, Angles and Quadrilaterals
Question
DEF is an equilateral triangle for side . A, B and C are midpoints of DE, EF and DF respectively. The area of triangle JKL is (in ) ________
DEF is an Equilateral Triangle for Side Given
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Question number: 107
» Lines, Angles and Quadrilaterals
Question
In the figure the bisectors of ∠PQR and ∠PRQ intersect each other at O, then ∠QOR is ________
Image Defines the 2 Bisectors Intersect Each Other
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Question number: 108
Question
The expression equals to ________
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| Choice (4) | Response | |
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Question number: 109
» Lines, Angles and Quadrilaterals
Question
The given figure ABCD is a parallelogram then the values of and are________
Image is Parallelogram ABCD
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 70˚, 25˚ | |
b. | 35˚, 60˚ | |
c. | 25˚, 70˚ | |
d. | 55˚, 40˚ | |
Question number: 110
» Lines, Angles and Quadrilaterals
Question
The measure of an angle is eight times the measure of its supplementary angle. Then the angles are________
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 65˚, 45˚ | |
b. | 20˚, 160˚ | |
c. | 63˚, 157˚ | |
d. | 140˚, 60˚ | |
Question number: 111
» Lines, Angles and Quadrilaterals
Question
In the figure below, lines WX and YZ intersect at O. if and , then are equal to ________
Image Defines the Lines WX and YZ Intersect at O
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 154˚ | |
b. | 158˚ | |
c. | 150˚ | |
d. | 190˚ | |