The measures of six angles of a heptagon are 145, 115, 152, 87, 90, and 150. Find the measure of the seventh angle.
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(Thank you)
The interior angles of a heptagon sum to (7 - 2) * 180 = 5 * 180 = 900°
So....the remaining angle is just
900 - 145 - 115 - 152 - 87 - 90 - 150 = 161°
I agree
Thank you!!
+67 
