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OpenStudy (anonymous):
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°
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OpenStudy (anonymous):
sum of all angels=(2n-4)90=900 now let the congruent angle be x, then 6x+144=900 now solve for x
OpenStudy (anonymous):
x=126
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