Answer:
Acute angle
Step-by-step explanation:
45°= Acute Angle
‘Cause It's less than 90°
It's an acute angle. Acute, in this case, means anything between 0 and 90 written 0<x<90. Notice that you are using < and not ≤. The endpoints are not included. They have their own names. 90 is a right angle. 0 is called a zero degree angle.
