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The sum of the interior angles of a triangle is 180 the second angle of a triangle is 45 more than the first and the third angle is twice the first

Respuesta :

first angle is x
x + (x + 45) + 2x = 180
4x + 45 = 180
4x = 180 - 45 = 135
x = 135 divided by 4
x = 33.75
first angle 33.75
second angle 78.75
third angle 67.5
checking
33.75 + 78.75 + 67.5 = 180

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