What is the sum of the interior angles of a regular pentagon?, 360°, 540°, 720°, 900°, An irregular hexagon has interior angles measuring 120°, 140°, 110°, 150°, 135°, and an unknown angle. What is the measure of the unknown angle?, 105°, 115°, 130°, 140°, What is the measure of each exterior angle of a regular octagon?, 30°, 40°, 45°, 60°, A regular decagon (10 sides) has an interior angle that measures 144°. What is the measure of each exterior angle of the decagon?, 36°, 40°, 45°, 50°, An irregular quadrilateral has three interior angles measuring 90°, 85°, and 100°. What is the measure of the fourth angle?, 85°, 95°, 100°, 120°
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Polygon Brain Teasers
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