Two lines intersect at a point 'O'. If one of the four angles formed is 30 degrees, what is the angle opposite to it?
60 degrees.
30 degrees.
45 degrees.
90 degrees.
The angle opposite to it is 30 degrees (Vertically Opposite Angles)
Two lines intersect at a point 'O'. If one of the four angles formed is 30°, what is the angle opposite to it?
Fill in the blanks:
(i) If two angles are complementary, then the sum of their measures is _______.
(ii) If two angles are supplementary, then the sum of their measures is _______.
(iii) Two angles forming a linear pair are _______.
(iv) If two adjacent angles are supplementary, they form a _______.
(v) If two lines intersect at a point, then the vertically opposite angles are always _______.
(vi) 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 _______.
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.