A picture frame is shaped as a heptagon. The measure of one angle is 126°. The remaining interior angles are congruent. What is the measure of each remaining interior angle in the picture frame?
Answer

129°

150°

171°

180°

Question

A picture frame is shaped as a heptagon. The measure of one angle is 126°. The remaining interior angles are congruent. What is the measure of each remaining interior angle in the picture frame?
Answer
		
129°
		
150°
		
171°
		
180°

happykiddo · Answer

help please aand show how if possible

anonymous · Answer

First determine the sum of all the interior angles...  (A heptagon has 7 sides)
What is the sum of the interior angles?

anonymous · Answer

The answer is  (7-2)x 180 degrees =  900 degrees...

anonymous · Answer

Since 1 angle is 126 degrees, the remaining 6 angles are 774 degrees...  774/6 =
129 degrees!

happykiddo · Answer

thanks alot :D

anonymous · Answer

YOu're welcome!  (More geometry notes are at  mathplane.com...)    Best of luck!