3. Identify which of the following pairs of angles are complementary and which are
supplementary
(1) 65°, 1150
(ii) 63°, 27°
(iii) 112°, 680
(iv) 130°, 50°
(v) 45°, 45°
(vi) 80°, 10°
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Question :-
Identify which of the following pairs of angles are complementary and which are supplementary?
Answer :-
(i) 65°, 115°
65° (+) 115° = 180°
They are supplementary angles
(ii) 63°, 27°
63° (+) 27° = 90°
They are complementary angles.
(iii) 112°, 680
112° (+) 68° = 180°
They are supplementary angles.
(iv) 130°, 50°
130° (+) 50° = 180°
They are supplementary angles
(v) 45°, 45°
45° (+) 45° = 90°
They are complementary angles.
(vi) 80°, 10°
80° (+) 10° = 90°
They are complementary angles.
__________
Complimentary angles :-
The angles whose sum is 90° is known as complimentary angles.
Supplementary angles :-
The angles whose sum is 180° is known as supplementary angles.
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