Answer: Memorise the rule that the sum of the interior angles of a polygon = (n-2) × 180°, and that each interior angle of a regular polygon can be calculated by the rule: (n-2) × 180° / n, where 'n' refers to the number of sides.
Step-by-step explanation:
Step-by-step explanation:
remeber this rule
sum=(n-2)*180°
n is no of side
take that away from 2
multiply 180
e.g triangle
3 sides
take away 2
3-2 is 1.
multiply by 180
1*180 is 180°
