A 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
A 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.
Yes.
An equalateral triangle
A polygon has as many angles as sides, so a polygon with 10 sides (decagon) would have 10 angles.
it can, or it can have three a polygon is a closed figure with at least three angles and three sides and no curves.
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.