Question 1199661
.
<pre>

x = angular measure of the "another" angle

2x+30 is that of the "one" angle

x + (2x+30) = 3x+30 is that of the third angle.


The basic equation for the sum of the three angles is

    x + (2x+30) + (3x+30) = 180.


Simplify and find x

    6x = 180 - 30 - 30 = 120 degrees.

     x                 = 120/6 = 20 degrees.


<U>ANSWER</U>.  The angles are 20 degs, 2*20+30 = 70 degs and 3*20+30 = 90 degs.


<U>CHECK</U>.  20 + 70 + 90 = 180 degs.   ! correct !
</pre>

Solved.