No, it is obtuse. That makes an angle greater than 90 degrees and acute angles are less than 90.
270 degrees
A square has no acute angles but it does have 4 right angle corners.
An acute angle is an angle less than 90°.
120 degrees and 240 degrees.
acute
Acute angle, right angle, obtuse angle and reflex angle
1 acute angle = 1 acute angle
The two acute angles total 90 degrees. If the larger angle is 4 times the smaller angle, then the smaller angle is 18 degrees and the larger angle is 72 degrees (4 x 18 degrees).
That is an acute angle. An obtuse angle is not acute.
An acute angle that is 1/4 of a right angle
An acute angle
The 4 to 1 ratio of the two acute angles can be restated as the larger acute angle is four times as large as the smaller acute angle. Since the sum of all angles in a triangle equal 180 degrees, the sum of the two acute angles will be equal to 90 degrees. The remaining 90 degrees are found in the right angle present in all right triangles. If we divide the 90 degrees of the acute angles by 5 (to get the five parts of our ratio) and ascribe 4 of those parts to the largest acute angle we can find the size of that angle by multiplying (90 / 5) x 4 = (18) x 4 = 72. Therefore the largest acute angle is 72 degrees and the smaller acute angle is 18 degrees for a total of 90 degrees. Answer: 72 degrees