



 
Robert, The total of all three angles in any triangle adds to 180 degrees. Let A = the first angle's size. then the second angle is 2A and the third angle is (2A + A)  48. So you can add these up to get 180. A + (2A) + [(2A + A)  48] = 180. Solve for A. Use that to find the other two angles. Hope this helps,  


Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences. 