Question 1070182
the angle of every triangle add up to 180 degrees.
let the smallest angle be x.
one angle: x+20
a third: 2x-40
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x+x+20+2x-40 = 180
4x-20 = 180
4x = 200
x = 50
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smallest angle: 50
another angle: 50+20 = 70
a third: 2(50)-40 = 60
50+70+60 = 180 Correct