Question

1. The sum of two complementary angles is _______.
2. The sum of two supplementary angels is _______.
3. The sum of two angles in a linear pair is ______.
4. Two adjacent angles have a
common ______ and a common _______.
5. Vertically opposite angles are _______.
6. Two angles have to be acute if they are_______.

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Answer 1

Answer:

1. 90°

2. 180°

3. 180°

4. side, vertex

5. equal

6. less than 90°

hope this helps you

Answer 2

Answer:

(i) If two angles are complementary, then the sum of their measures is 90

(ii) If two angles are supplementary, then the sum of their measures is 180

(iii) Two angles forming a linear pair are supplemetary

(iv) If two adjacent angles are supplementary, they form a linear pair

(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

.