18. The sum of the measures of two complementary angles is
(a) 180°
(b) 60°
(c) 45°
(d) 90°
Answers
Answered by
1
Answer:
Two angles are called complementary when their measures add to 90 degrees. Two angles are called supplementary when their measures add up to 180 degrees.
Answered by
2
Answer:
90 °
Step-by-step explanation:
Complementary angles are also known as 90°
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