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Mathematics 18 Online
OpenStudy (anonymous):

Find the measure of the third angle of a triangle if the first angle has a measure of x and the measure of the second angle is 15 degrees less than half the measure of the first angle.

OpenStudy (anonymous):

from the given,you can only find it in terms of x

OpenStudy (barrycarter):

Hint: the angles of a triangle add up to... ?

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