- A60
- B84
- C36
- D75
Step-by-Step Solution
3 + 5 + 7 = 15 parts = 180°, so one part = 12°. The middle angle is ° = 60°.
Answer: A) 60
If the angles of a triangle are in the ratio 3 : 5 : 7, what is the middle-sized angle? (answer in degrees)
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