Since the angles of a triangle add up to 180°, if one of the angles is a right angle (definition of a right triangle) then the sum of the other two will be 90°. If we designate the measure of the smaller acute angle as "x" then the other angle will be "4x" and:
x + 4x = 90°
so
5x= 90°
and
x = 18°
50 degrees
If its a right angle triangle then the second acute angle is 62 degrees
Each interior angle of an equilateral triangle measures 60 degrees
yes, it only needs one acute angle out of the three to make it an acute triangle.
An acute triangle.
The measure of the smaller acute angle of the triangle is: 17.46 degrees.
50 degrees
A right triangle has a 90 degree angle and an acute triangle has an angle smaller than 90 degrees.
no an acute triangle does not have a right angle. if it had a right angle, it would be called a right triangle. to be an acute triangle, the triangle needs two angles that are smaller than 90 degrees.
Yes because the measure of each angle in an equilateral triangle is 60 degrees which is an acute angle.
70
If its a right angle triangle then the second acute angle is 62 degrees
An acute triangle.
That depends on the sizes of the other 2 angles if it's a right angle triangle then the other acute angle would be 70 degrees.
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).
Each interior angle of an equilateral triangle measures 60 degrees
Such a triangle would presumably have one right angle, and two acute angles. A right angle has a measure of 90 degrees; an acute angle has a measure of less than 90 degrees. Since both of the other two angles in a right triangle must be acute angles, you'd think at first that every right triangle must be a right acute triangle. But when you go and look up the definition of an "acute triangle", it turns out to be a triangle in which all three angles are acute. So the fact is that there's no such thing as a right acute triangle, because the 90-degree angle in a right triangle is not acute.