Adjacent Angles

In the adjoining figure,name the following pairs of angles.(i) Obtuse vertically opposite angles (ii) Adjacent complementary angles (iii) Equal supplementary angles (iv) Unequal supplementary angles ( iv) Adjacent angles that do not form a linear pair

LINEAR PAIR Two adjacents angles are said to form a linear pair of angles if their non- common arms are two opposite rays.

If an angle of a parallelogram is two-thirds of its adjacent angle, the smallest angle of the parallelogram is

If an angle of a parallelogram is four fifths of its adjacent angle, find the angles of the parallelogram.

In Figure,ABCD is a quadrilateral.Name a pair of adjacent sides.Name a pair of opposite sides.How many pairs of adjacent sides are there? How many pairs of adjacent sides are there? Name a pair of adjacent angles.Name a pair of opposite angles.How many pairs.of adjacent angles are there? opposite angles are there?

If adjacent angle of a Quadrilateral in the ratio 2 : 7 : 2 : 7 then Quadrilateral

One angle of a parallelogram is thrice its adjacent angle. Which of the following is one of its angles ?