A triangle
Triangle
Polygon
A three-sided polygon is a triangle. The angles in a triangle add up to 180 degrees.
At least three of each.
Yes.
It's probably a triangle. A triangle has three sides and three angles.
Polygon
Triangle
Polygon
No REGULAR polygon can have three right angles in it. Any polygon with five or more sides CAN have three right angles, as long as it's not regular.
A three-sided polygon is a triangle. The angles in a triangle add up to 180 degrees.
At least three of each.
An equalateral triangle
Yes.
it can, or it can have three a polygon is a closed figure with at least three angles and three sides and no curves.
A polygon has as many angles as sides, so a polygon with 10 sides (decagon) would have 10 angles.
No, it is not a type of triangle as a triangle is defined as a polygon with three sides and three angles and a parallelogram has four sides and four angles.