IDNLearn.com is your go-to resource for finding expert answers and community support. Ask your questions and get detailed, reliable answers from our community of knowledgeable experts.

The sum of the measures of the interior angles of a polygon is 1440 How many sides does it have ________ sides

Sagot :

the only shape that has that much is a decagon 10 sides. the sum of the interior angles of a  Regular Decagon is 1440 degrees. 
To do this sum and to understand angles in polygons let's start at a triangle this has 180 deg,a square has 360 deg,a pentagon has 540 deg. Every time we add a side we add 180 deg. This finally accumulates to 1440 on a ten sided figure.