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Nadusha1986 [10]
3 years ago
14

six angles of a heptagon measure 107, 139, 131, 110, 145. and 128. what is the measure of the seventh angle​

Mathematics
1 answer:
alexgriva [62]3 years ago
3 0

the measure is 140, I basically summed all of the angles of a polygon of “n”, which is 7, then I did 7-2 times 180 (900) so I can finally add up all of your measurements

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