Statement(1): If the measure of an angle is less than 90, then it is acute.

Statement(2):  If an angle is acute, then it is not obtuse.

Let p,q and r represents each part of the statements.

p: The measure of an angle is less than 90.

q: It is acute.

r: It is not obtuse.

Statement(1):   

Statement(2):   

Since the given statements are true.

So, using Law of Syllogism the conclusion is .

The conclusion is If the measure of an angle is less than 90, then it is not obtuse.