Answer:
The answer is D, 60 degree angle.
Explanation:
The statement is saying that if an angle is acute then it is 30 degrees. That's like saying if an angle is acute then it MUST be 30 degrees.
You can go ahead and eliminate the answer choices that are obtuse angles, such as 90 and 100 and go ahead and remove 30 because that was included in the statement.
That results us in only having the answer choice 60 degrees, which is an acute angles and is NOT 30 degrees.
