What is the sum of interior angles in a pentagon?, 360°, 540°, 720°, 900°, What is the measure of each interior angle in a regular hexagon?, 90°, 108°, 120°, 135°, How many sides does a polygon have if the sum of its interior angles is 1080°?, 8, 9, 10, 11, A regular polygon has each interior angle measuring 144°. How many sides does it have?, 9, 10, 11, 12, In a regular octagon, what is the measure of each interior angle?, 110°, 115°, 120°, 135°

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