It is an angle more than 0 degrees but less than 90 degrees. An acute angle is any angle of between 0 and 90 degrees.
A right angle is an angle that measures exactly 90 degrees.
An obtuse angle is an angle that measure between 90 and 180 degrees.
To remember the difference between an acute angle and an obtuse angle, think of "a cute" (acute) puppy and an large obese (obtuse) bulldog. Kind of cheesy but the words do sound alike and might help you remember
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A complement of an acute angle must be an acute angle. An acute angle is an angle whose measure is more than 0 degrees but less than 90 degrees. For example, even if the angle was the minimum 1 degree, the complement is still 89 degrees, which is still acute. Therefore, any combination of a complement of an acute angle MUST be acute.
An angle of 60 degrees is an acute angle
an angle with a acute and right angle
It is an acute angle.
Acute