An isoceles triangle.
A triangle.
Any polygon can have 3 equal interior angles, but it doesn't have to.An equilateral triangle always has 3 equal interior angles.
An equilateral triangle.
An acute angled triangle
If the shape has 3 angles in all, where two of the angles are acute, then the shape is a scalene triangle.
A seven sided shape is a heptagon.
No polygon can have less than 3 angles. It would be a triangle with 3 sides but that has 3 angles.
Triangle
An isoceles triangle.
Triangle
a triangle
triangle
a pentagon
3
pentagon
A triangle.