HOW TO FIND ANGLE SUM PROPERITY OF A DECAGON !?
We can find the angle sum of decagon by dividing it into 8 triangles.
Then angle sum of decagon = 8 × angle sum of triangle = 8 × 180° = 1440°
Sum of all the angles (in degress) of a regular decagon will be equal to:
The sum of all the interior angles of a decagon is ___.
Sum of the measure of the exterior angles of a decagon is ______ .
Find the value of each interior angle of a regular decagon.