Since a right triangle has 180 degree angles in it, you know 2 angles already. One is the 90 degree angle, since the triangle is a right one. The other is 40 degrees, as in your statement. 90 plus 40 is 130. 50 degrees is the missing angle since 50 + 40+ 90 equal 180 degrees. Hopefully that helped you.
50 degrees
A triangle with 3 acute angles is an acute triangle. All the angles in an acute triangle are acute.
If its a right angle triangle then the second acute angle is 62 degrees
An acute triangle can be an isosceles triangle, but it doesn't have to be. An isosceles triangle can be an acute triangle, but it doesn't have to be.
Each interior angle of an equilateral triangle measures 60 degrees
50 degrees
The measure of the smaller acute angle of the triangle is: 17.46 degrees.
It depends on what measure is missing.
Yes because the measure of each angle in an equilateral triangle is 60 degrees which is an acute angle.
Scalene or Acute triangle
An acute triangle.
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.
Could be a 90-60-30 degree triangle. so, 60 degrees.
A acute angled scalene triangle.
Yes because the 3 equal interior angles each measure 60 degrees which is an acute angle
70
A triangle with 3 acute angles is an acute triangle. All the angles in an acute triangle are acute.