Question

Say True or False.
(i) 20° and 70° are complementary.
(ii) 88° and 12° are complementary.
(iii) 80° and 180° are supplementary.
(iv) 0° and 180° are supplementary

Answer 1

1)True
2)False
3)False
4)True


..hope helps..

Answer 2

The answers to the questions are as follows:
(1) 20° and 70° are complementary - True

(2) 88° and 12° are complementary - False

(3) 80° and 180° are supplementary - False

(4) 0° and 180° are supplementary - True

Complementary angles:

• Complementary angles are those angles whose sum results in 90°.
• The angles 20° and 70° gives a sum of 90°. Hence they are complementary.
• The angles 88° and 12° gives a sum of 100°. Hence they are not complementary.

Supplementary angles:

• Supplementary angles are those angles whose sum results in 90°.
• The angles 80° and 180° gives a sum of 260°. Hence they are not supplementary.
• The angles 0° and 180° gives a sum of 180°. Hence they are supplementary.

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