What is the sum of all the interior angles of a pentagon?

720 degrees

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540 degrees

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360 degrees

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1080 degrees

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Solution

The correct option is B 540 degrees
Sum of interior angles of a polygon = (n-2)180⁰
Pentagon has 5 sides, so n = 5
Therefore,
Sum of interior angles of a pentagon = (5-2) 180⁰
Sum of interior angles of a pentagon = 540⁰.

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