3 years ago

Find the angle sum of polygon which had 9 sides

Mathematics

1 answer:

Ad libitum [116K]3 years ago

8 0

Answer:

1260°

Step-by-step explanation:

Number of sides was given as 9, hence ( n= 9)

Sum of interior angle of a polygon can be determined using the expression below

[(2n-4)90°]

Substitute n=9

[((2×9) -4)) ×90]

= [(18-4)×90]

(14×90)=1260°

Hence, angle sum of polygon which had 9 sides is 1260°

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Find the angle sum of polygon which had 9 sides​

Find the angle sum of polygon which had 9 sides