IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 188 - 193 of 931
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Question 188
Question
MCQ▾In and , , are extended to X and Y respectively and . Under which congruency criterion, the triangles are congruent?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | SAA | |
| b. | SAS | |
| c. | SSS | |
| d. | SSA | |
Question 189
Question
MCQ▾The angle between bisectors of the angles of a linear pair is ________
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 90˚ | |
| b. | 30˚ | |
| c. | 45˚ | |
| d. | 180˚ | |
Question 190
Question
MCQ▾Three parallel lines are cut by two transversals as shown in the given figure. If , and , then the length of QR is ________
Image Shows Three Parallel Lines and Two Transversal Lines
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 12 cm | |
| b. | 14 cm | |
| c. | 16 cm | |
| d. | 10 cm | |
Question 191
Question
MCQ▾Three parallel lines are cut by two transversals as shown in the given figure. If , and , then the length of EF is ________
Image of Three Parallel Lines and Two Transversal Lines
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 2 cm | |
| b. | 3.5 cm | |
| c. | 4 cm | |
| d. | 3 cm | |
Question 192
Question
MCQ▾In the figure, and then ∠4 is________
Image Defines the AB, CD and EF is Parallel Line
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 126˚ | |
| b. | 136˚ | |
| c. | 172˚ | |
| d. | 134˚ | |
Question 193
Question
MCQ▾The angles P, Q, R, S in the parallelogram PQRS are________
Image PQRS is Parallelogram
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 50˚, 60˚, 30˚, 40˚ | |
| b. | 90˚, 60˚, 90˚, 60˚ | |
| c. | 90˚, 90˚, 90˚, 90˚ | |
| d. | 50˚, 45˚, 80˚, 15˚ | |