720
360
Sum= 2340 Degrees A+
The sum of the measures of the interior angles of any quadrilateral is 360.(S-2)*180 equals the sum.
It measures half the sum of the arcs it intercepts.
360 degrees
180
720
360
35
360
180
The sum of the measures of the angles in a figure having 9 sides is 20 degrees each angle.
Sum= 2340 Degrees A+
1,080
supplementary
360 degrees