Math (triangles)

Given b=48, A=36 degrees find the remaining parts of the right triangle.

B=
a)144 degrees
b)154 degrees
c)54 degrees
d)64 degrees

We know that one angle equals 36 and since it is a right triangle another must equal 90. The sum of the angles of a triangle is 180 meaning that we add 36 and 90 to get 126 and then subtract 126 from 180 leaving us with 54.
Did I do this the correct way it seems to easy?

yes correct

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