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MATHEMATICS

JAMB 2007 - Question 48

Mathematics 2007 JAMB Past Questions - Question 48: Find the size of each exterior angle of a regular octagon.

Find the size of each exterior angle of a regular octagon.

A: 51

B: 45

C: 40

D: 36

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Correct Answer

Explanation

Each exterior angle e = 360 /n, where n = 8 (for octagon)therefore e = 360b/8 = 45A regular octagon has 8 sides, and the sum of the exterior angles of any polygon is always 360 degrees.To find the size of each exterior angle of a regular octagon, we divide the total sum of the exterior angles (360 degrees) by the number of sides (8):360 degrees / 8 = 45 degreesTherefore, each exterior angle of a regular octagon measures 45 degrees.