NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 5: Lines And Angles - Problems and SolutionsQuestion 80
Class 7 - Mathematics - Unit 5: Lines And Angles - Problems and Solutions
Question. 80
80. In Fig. 5.40, OR ⟂ OP.
(i) Name all the pairs of adjacent angles.
(ii) Name all the pairs of complementary angles.
Answer:
(i) ∠x, ∠y; ∠x+∠y, ∠z; ∠y, ∠z; ∠y+∠z, ∠x; ∠x+∠z, ∠y
(ii) ∠x, ∠y; ∠x, ∠z; ∠y, ∠z
Detailed Answer with Explanation:
Since OR ⟂ OP, right angles are formed. All complementary and adjacent angle pairs are listed based on definitions.