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How can you best describe the outside of one of these objects using polygons? The object has sides, so it is . It appears to be because the sides and angles appear to be congruent.
What is the sum of the interior angle measures of a regular decagon? ⇒ 1,440° What is the measure of each interior angle of a regular decagon? °
Four interior angles of a pentagon measure 156°, 72°, 98°, and 87°. What is the measure of the final interior angle?
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