IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 178 - 184 of 931
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Question 178
Question
MCQ▾If two complementary angles are in the ratio 13: 5, then the angles are________
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 65˚, 25˚ | |
b. | 13 x˚, 5 x˚ | |
c. | 15˚, 85˚ | |
d. | 65˚, 35˚ | |
Question 179
Question
MCQ▾If a right triangle has sides of length 1 and , which of the following could be the length of the remaining side?
- 1
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 3 Only | |
b. | 1 Only | |
c. | 1 And 3 Only | |
d. | 2 Only | |
Question 180
Question
MCQ▾If and x and y are positive integers, then y could be which of the following?
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 4 | |
b. | 5 | |
c. | 3 | |
d. | 2 | |
Question 181
Question
MCQ▾In the figure , form a linear pair and . Then a, b respectively are________
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 110˚, 70˚ | |
b. | 120˚, 80˚ | |
c. | 80˚, 120˚ | |
d. | 70˚, 100˚ | |
Question 182
Question
MCQ▾All the three quadrilaterals ADEC, ABIH and BCGF are squares and if the area of and area of , then find the area of BCGF?
Choices
| Choice (4) | Response | |
|---|---|---|
a. | ||
b. | ||
c. | ||
d. | ||
Question 183
Question
MCQ▾If two supplementary angles are in the ratio 13: 5, then the angles is ________
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 120˚, 60˚ | |
b. | 125˚, 55˚ | |
c. | 130˚, 50˚ | |
d. | 145˚, 35˚ | |
Question 184
Question
MCQ▾Two supplementary angles differ by 34˚. Then the angles are ________
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 107˚, 73˚ | |
b. | 74˚, 107˚ | |
c. | 120˚, 60˚ | |
d. | 72˚, 108˚ | |