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If two lines intersect and if one pair o...

If two lines intersect and if one pair of vertically opposite angles is formed by acute angles, then the other pair of vertically opposite angles will be formed by obtuse angles.

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Fill in the blanks: If two lines intersect at a point, and if one pair of vertically opposite angles are acute angles, then the other pair of vertically opposite angles are __________.

Pair of vertically opposite angles are ______

In identity: Two pairs of vertically opposite angles.

If two lines intersect, then vertically opposite angles are......... .

In the figure identify. The pairs of vertically opposite angles.

When two lines intersect, the vertically opposite angles so formed are _____________

Indicate which pair of angle are vertically opposite angles.

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In the adjoining figure, identify the vertically opposite angles.

MBD-Lines and Angles-Exercise
  1. Two distinct lines in a plane can have two points in common.

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  2. If angles forming a linear pair are equal, then each of these angles i...

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  3. If two lines intersect and if one pair of vertically opposite angles i...

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  4. If two lines intersect and one of the angles so formed is a right angl...

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  5. Two distinct points in a plane determine a ............ Line.

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  6. Two distinct .......... in a plane cannot have more than one point in ...

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  7. Given a line and a point, not on the line, there is one and only ........

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  8. A line separates a plane into ............ parts namely the two .........

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  9. If one angle of a linear pair is acute, then its other angle will be ....

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  10. If a ray stands on a line, then the sum of the two adjacent angles so...

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  11. If the sum of two adjacent angles is 180^@, then the .........arms of ...

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  12. If two lines intersect, then vertically opposite angles are......... .

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  13. In fig. , if AB II CD, EF | CD and angleGED = 126^@, find angleAGE, a...

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  14. In fig. , if PQ II ST, anglePQR = 110^@ and angleRST = 130^@, find a...

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  15. In fig. , PQ and RS are two mirrors placed parallel to each other. A...

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  16. In given fig. , given AB || CD if angle1 = (120 -x)^@ and angle5 = 5x...

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  17. If two parallel lines are intersected by a transversal, then each pair...

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  18. If two parallel lines are intersected by a a transversal, then interio...

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  19. Two lines are perpendicular to the same line are ......... to each oth...

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  20. If a transversal intersects a pair of lines in such a way that a pair ...

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