ICSE Class 8 Answered

Need an answer for these 2 questions.

Asked by neilsgpac | 09 Aug, 2017, 12:26: PM

Expert Answer

begin mathsize 16px style Sum space of space interior space angles space of space straight a space straight n minus sided space polygon equals left parenthesis straight n minus 2 right parenthesis cross times 180 degree rightwards double arrow straight a subscript 1 plus straight a subscript 2 plus straight a subscript 3 plus......... straight a subscript straight n equals left parenthesis straight n minus 2 right parenthesis cross times 180 degree rightwards double arrow left parenthesis 180 degree minus straight x subscript 1 right parenthesis plus left parenthesis 180 degree minus straight x subscript 2 right parenthesis plus....... plus left parenthesis 180 degree minus straight x subscript straight n right parenthesis equals left parenthesis straight n minus 2 right parenthesis cross times 180 degree rightwards double arrow 180 degree straight n minus left parenthesis straight x subscript 1 plus straight x subscript 2 plus....... plus straight x subscript straight n right parenthesis equals 180 degree straight n minus 360 degree rightwards double arrow left parenthesis straight x subscript 1 plus straight x subscript 2 plus....... plus straight x subscript straight n right parenthesis equals 360 degree minus 180 degree straight n plus 180 degree straight n rightwards double arrow straight x subscript 1 plus straight x subscript 2 plus....... plus straight x subscript straight n equals 360 degree end style

Answered by Rashmi Khot | 09 Aug, 2017, 03:31: PM

Concept Videos