What is the sum of all angles of a hexagon?
(a) 180°
(b) 360°
(c) 540°
(d) 720°
(d) Sum of all angles of a n-gon is (n – 2) x 180°.
In hexagon, n = 6, therefore the required sum = (6 – 2) x 180° = 4 x 180° = 720°
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