Mathematics for IGCSE & O level - Angles (Section 3 - No. 12) | ExamPlay

Mathematics for IGCSE & O level - Angles (Section 3 - No. 12)

What is the sum of the interior angles in a regular octagon?

360°

720°

1080°

1440°

설명

The formula is (n-2) * 180. For an octagon, (8-2)*180 = 1080°

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