Triangle
A triangle
an equalateral triangle. im not sure if thats how you spell it.
Polygon
A three-sided polygon is a triangle. The angles in a triangle add up to 180 degrees.
The name of a triangle came from the number of angles it has, 'tri' meaning three.
A Regular Polygon
A triangle
Polygon
Triangle
A triangle
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.
an equalateral triangle. im not sure if thats how you spell it.
It's probably a triangle. A triangle has three sides and three angles.
A triangle.
Polygon
A three-sided polygon is a triangle. The angles in a triangle add up to 180 degrees.