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ICSE Class 8 Answered

Find the sum of exterior angles 7 sides of a Pentagon
Asked by reemaripple | 22 Jun, 2018, 10:32: PM
answered-by-expert Expert Answer

we know that the sum of exterior angle +interior angle is 180

so, if the polygonal has 7 side than

sum of all exterior angle+ sum of interior angle= 7*180

so, sum of all exterior angle= 7*180- sum of interior angle 

sum of all exterior angle = 7*180-(7-2) *180

                                        = 7*180-5*180

                                        = 1260-900

                                        = 360

Answered by Arun | 23 Jun, 2018, 09:03: PM

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