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Mostafiz Rahman · Answer 1 · 2018-03-03T21:31:30+0000

3x + 2x = 90 {the two angles add up to 90°}
5x = 90 {combined like terms}
x = 18 {divided both sides by 5}

angle 1 = 3x
= 3(18) {substituted 18, in for x, into 3x}
= 54° angles add up to 90°

angle 1 = 3x
angle 2 = 2x

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