Find the no.of sides in a regular polygon if interior angle is equal to its exterior angle
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if interior angle is equal to exteriorangle then the no of sides in the polygon will be 4 as
ext angle + int angle=190. linear pair
let ext angle be x
x+x=180. as int angle= ext angle
2x=180
x=90
ext angle=360/n
n=360/ext angle
n=360/90
n=4
therefore the polygon is a quadrilateral
ext angle + int angle=190. linear pair
let ext angle be x
x+x=180. as int angle= ext angle
2x=180
x=90
ext angle=360/n
n=360/ext angle
n=360/90
n=4
therefore the polygon is a quadrilateral
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