SmartCookie04
SmartCookie04
27-10-2020
Mathematics
contestada
please help, i'm so confused
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jawnuhthin
jawnuhthin
27-10-2020
to find x the sum of the measure of all angles in a triangle is 180°. so 9x+3+11x-21+5x-2=180°, 25x=200, x=8... to find each angle u have to substitute x with 8
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