Lines, Angles and Quadrilaterals [IMO Level 1- Mathematics Olympiad (SOF) Class 9]: Questions 14 - 20 of 125
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Question 14
Question MCQ▾
In the given figure and , then value of x is________.
Choices
Choice (4) | Response | |
---|---|---|
a. | 140˚ | |
b. | 105˚ | |
c. | 135˚ | |
d. | 125˚ |
Question 15
Question MCQ▾
How many sides does a regular polygon have, each angle of which is of measure 135˚?
Choices
Choice (4) | Response | |
---|---|---|
a. | 6 | |
b. | 8 | |
c. | 7 | |
d. | 9 |
Question 16
Question MCQ▾
Two supplementary angles differ by 94˚. Then the angles are ________
Choices
Choice (4) | Response | |
---|---|---|
a. | 120˚, 60˚ | |
b. | 142˚, 38˚ | |
c. | 137˚, 43˚ | |
d. | 67˚, 113˚ |
Question 17
Question MCQ▾
In the figure below, lines PQ and JK intersect at O. if and , then are equal to ________
Choices
Choice (4) | Response | |
---|---|---|
a. | 56˚ | |
b. | 54˚ | |
c. | 58˚ | |
d. | 90˚ |
Question 18
Question MCQ▾
In the given figure, and . Then ∠ URS is________
Choices
Choice (4) | Response | |
---|---|---|
a. | 140˚ | |
b. | 120˚ | |
c. | 160˚ | |
d. | 190˚ |
Question 19
Question MCQ▾
If l, m, n are three parallel lines and the transversals t1 and t2 cut the lines l, m, n at the points A, B, C and P, Q, R as shown in the figure, then________.
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Question 20
Question MCQ▾
The angles of quadrilateral are in the ratio . All angles of a quadrilaterals are________
Choices
Choice (4) | Response | |
---|---|---|
a. | 72˚, 36˚, 108˚, 144˚ | |
b. | 36˚, 60˚, 20˚, 156˚ | |
c. | 145˚, 20˚, 30˚, 60˚ | |
d. | 108˚, 144˚, 45˚, 15˚ |