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A heptagon has interior angles that measure 109°, 143°, 120°, 152°, 117°, and 84°. What must be the measure of the remaining angle?
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A heptagon has interior angles that measure 109°, 143°, 120°, 152°, 117°, and 84°. What must be the measure of the remaining angle?

User Obediah
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1450 is the missing angle
User Adunni
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