- A32
- B72
- C36
- D40
Step-by-Step Solution
Let the angles be and → → . Smaller = °.
Answer: C) 36
Two complementary angles are in the ratio 2 : 3. Find the smaller angle (in degrees).
Class 7Lines and AnglesLines and Angles
Key idea: Complementary and supplementary
Two angles are **complementary** if they add to 90°. So if one is 35°, the complement is 90° − 35° = 55°.
Two angles are **supplementary** if they add to 180°. So if one is 110°, the supplement is 180° − 110° = 70°.
The angles don't have to be next to each other — only their measures matter.
Two angles are **supplementary** if they add to 180°. So if one is 110°, the supplement is 180° − 110° = 70°.
The angles don't have to be next to each other — only their measures matter.
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