# 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 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 _.

**Solution:**

We use the geometry concepts like supplementary angles, vertically opposite angles and adjacent angles to solve the problem.

(i) 90°

(ii) 180°

(iii) Supplementary

(iv) Linear pair

(v) Equal

**Video Solution:**

## 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 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 _.

### NCERT Solutions for Class 7 Maths - Chapter 5 Exercise 5.1 Question 13

(i)90, (ii)180, (iii)Supplementary, (iv) Linear, (v) Equal, (vi) Obtuse.