Homework Help: Geometry

Posted by Amanda on Sunday, September 30, 2012 at 12:29am.

Find the measure of each angle in a triangle with angles: x, (x-135), and 1/10 x

Geometry - Reiny, Sunday, September 30, 2012 at 8:34am
we know that
x + x-135 + x/10 = 180
multiply each term by 10
10x + 10x + 1350 + x = 1800
21x = 450
x = 450/21 = 150/7

x = 150/7
x-135 = a negative ! , OOPS, something is bogus about your data, an angle inside a triangle cannot be negative.

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