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19-03-2017
Mathematics

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What is the measure of an angle that is 8 degrees less than 3 times its supplement?

Respuesta :

19-03-2017

Supplementary angles have a sum of 180 degrees.

If one angle is x, its supplementary angle is 180-x.

We are told that x is 8 less than triple its supplements so:

x=3(180-x)-8

x=540-3x-8

4x=532

x=133

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