The angles 'x' and '90∘ - x' are :
vertically opposite angles
complementary angles
making a linear pair
supplementary angles
Adding the two angles, we get x+90∘−x=90∘ Hence, the angles 'x'and '90∘ - x' are complementary angles
Question 25
In the given figure ∠AOC and ∠BOC form a pair of (a) vertically opposite angles (b) complementary angles (c) alternate interior angles (d) supplementary angles
In the figure given below, ∠A and ∠B are