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
A shape with 3 right angles and 2 obtuse angles is a pentagon. A pentagon is a five-sided polygon, and when three of its angles are right angles (90 degrees each) and two are obtuse angles (greater than 90 degrees each), it meets the criteria specified. This specific type of pentagon is known as a concave pentagon, as it has at least one interior angle greater than 180 degrees.
A triangle.