Question 350624
Hi,
*Note: the sum of the angles of a triangle is 180 degrees.
Let x be the smallest angle, then (x+90) and (x+30) are the other two.
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x +(x+90) + (x+30)= 180
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simplify and solve
3x +120 = 180
3x = 60
x = 20
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50 = (x+30) 
110 =(x+90) 
20 degrees, 50 degrees, 110 degrees are the angles 
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check your answer
20 +50 110 = 180