Question

Find the sum of interior angles of a regular polygon having 7 sides ​

Answer 1

Answer:

Definition of Heptagon

Since, heptagon has 7 sides therefore, Sum of

interior angles = (n - 2) × 180°

Answer 2

heptagon has 7 sides therefore,

Sum of interior angles = (n - 2) × 180°

= (7 - 2) × 180° = 5 × 180°

= 900°

Each interior angle of a regular heptagon = (n−2)х180⁰n
(
n
−
2
)
х
180
⁰
n

= (7−2)х180⁰5
(
7
−
2
)
х
180
⁰
5
= 9005
900
5

= 128.571°

Sum of exterior angles = 360°