Software-Engineering
October 11, 2023Data-Interpretation
October 11, 2023GATE 2020
| Question 1 |
Two straight lines are drawn perpendicular to each other in X-Y plane. If α and β are the acute angles the straight lines make with the X-axis, then α+β is ______.
| 60° | |
| 120° | |
| 180° | |
| 90° |
Question 1 Explanation:
Two st. line perpendicular to each other in X-Y, if α & β are acute angles then α + β = ____
We know a + α + β = 180
α + β = 180 – 90
α + β = 90
We know a + α + β = 180
α + β = 180 – 90
α + β = 90
Correct Answer: D
Question 1 Explanation:
Two st. line perpendicular to each other in X-Y, if α & β are acute angles then α + β = ____
We know a + α + β = 180
α + β = 180 – 90
α + β = 90
We know a + α + β = 180
α + β = 180 – 90
α + β = 90