### Instruction: What is the ratio of one interior angle of an equilateral triangle to one interior angle of a square? Express your answer as a common fraction.### Response: I know that an equilateral triangle has three congruent angles of 60 degrees each, and a square has four congruent angles of 90 degrees each.
So the ratio I'm looking for is 60/90, which I can simplify by dividing both the numerator and the denominator by 30.
That gives me 2/3 as the simplified ratio.