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Rasek [7]
3 years ago
12

The sum of the angle measures of a quadrilateral is 360°. Write and solve an equation to find the value of .

Mathematics
1 answer:
Masja [62]3 years ago
7 0

let the unknown no.be x

therefore, 76+122+92+x = 360

                 = 198+92+x = 360

                = 290+x = 360

                    x=360-290

                    x= 70degree

hope this is helpful,

^_^

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