homework
posted by Tameka Graves .
A trigangular region of a community college parking lot was measured. The measure of the first angle of this triangle is doubled the measure of the second angle. The measure of the third angle is 89 degree greater than double the measure of the first angle. what is the measurement of all three

A1=2A2
A3=89+2A1
A1+A2+A3=180
does that help?