An equilateral triangle.
A triangle with 3 acute angles is an acute triangle. All the angles in an acute triangle are acute.
No, not always
Yes
No.
In any right triangle, the two angles at either end of the hypotenuse are both always acute angles. But I don't think that would be called an 'acute' triangle, because an acute triangle is one in which all three angles are acute ones.
It doesn't matter if a triangle is isosceles, scalene, obtuse, acute... There are always 3 angles in a triangle (which add up to 180).
a triangle
Yes. A triangle can have only one obtuse angle. The other two angles will always be acute.
It is an equilateral triangle
A scalene triangle can have an obtuse angle and two different acute angles or three different acute angles but all angles in a triangle must add up to 180 degrees.
In an acute triangle, all three angles are acute.
Equilateral triangles have 3 sides of equal length, and 3 angles with measures of 60 degrees each.