- A11
- B10
- C12
- D9
Step-by-Step Solution
The full sum must exceed 1500 by less than 180°. The only multiple of 180 that works is 1620 (missing angle 120°), so and .
Answer: A) 11
The sum of all but one of the interior angles of a convex polygon is 1500°. How many sides does the polygon have?
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