Question

If you have a right triangle one angle is twice the size of the other. What is the measure of the smallest angle?

Answer 1

30 degrees.

Because a right triangle has a 90 degree angle; and a total of 180 degrees.
Therefore:

180-90-2x-x=0
Solve for X:

90-3x=0
3X=90
X=30.

Answer 2

30 degrees
Triangle = 180 degrees , right angle is 90 so the smallest angle would be 30 degrees and the other angle would be 60 degrees