A picture frame is shaped as a heptagon. The measure of one angle is 144°. The remaining interior angles are congruent. What is the measure of each remaining interior angle in the picture frame?

126°

180°

174°

150°

Question

A picture frame is shaped as a heptagon. The measure of one angle is 144°. The remaining interior angles are congruent. What is the measure of each remaining interior angle in the picture frame?

 126°

 180°

 174°

 150°

anonymous · Answer

Total int angle of a heptagon= 180(number of sides-2) = 180(5) =900 degrees
Number of angles left= 6
Number of degrees left= 900-144= 756
Measure of each remaining int angle= 756/6 =126 degrees (answer is A)

anonymous · Answer

is this clear enough? :/