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Alborosie
4 years ago
9

Can someone give me a hand

Mathematics
2 answers:
Vlad1618 [11]4 years ago
5 0
The four interior angles make a sum of 360
x+10+3x+2x+x=360
7x=350
x=50
lys-0071 [83]4 years ago
3 0
Well.. k so a four sided figure has a sum of 360 degrees. So basically now all you have to do is add everything inside the four sided figure and set it equal to 360
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