10 (13) 15
35 (37) 40
45 (48) 50
60 (61) 65
90 (93) 95
Answer:
A. 70
Step-by-step explanation:
The given quadrilateral DEFG is a cyclic quadrilateral.
...opposite angles of a cyclic quadrilateral are supplementary.
The sum of angles in a quadrilateral is 360 degrees.
We know that
The exterior angle measures of a polygon must add up to 360°,
therefore
360°/72°=5 exterior angles
so
5 exterior angles, would mean 5 interior angles and therefore 5 sides to the polygon
The exterior angle and the interior angle of any polygon are supplementary and must add up to 180°.
exterior angle+interior angle=180°
interior angle=180°-exterior angle
interior angle=180°−72°-------> 108°
Each interior angle is 108°
The sum of the interior angles would be
5*108°=540°
the answer is
540°
The correct answer is 10.5 feet because I did the same problem by I had to find ca side my given was that RQ is 10.5
