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I need help solving this problem.

I need help solving this problem.-example-1
User Francena
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1 Answer

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A four cornered figure shape (lol) the angles of it equal 360 total
you have three angles given
we can make an equation to solve for x
so
90 + 90+ 128 + x = 360
combine like terms
308 + x = 360
subtract 308 from both sides
x = 52

Hope this helps :)
User FelixCQ
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