Printable worksheet ยท 4 of 4
Triangulate to find the total - Paper 4
Read the information, then answer the questions. An adult may read the instructions aloud. Show your working where asked.
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A regular convex polygon has 12 sides. Its interior angle total is (n - 2) x 180 degrees. Regular means equal sides and equal angles; divide the total by n for one interior angle. Exterior turning angles total 360 degrees, so one regular exterior angle is 360/n. Do not assume equal angles for an irregular polygon.
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