Not here. It would resemble a chevron.
a right angle triangle.
A right angle triangle
A Triangle~!
A square or a rectangle.
In plane geometry, a shape with four sides, two of which are parallel and have the same length, cannot have a reflex angle.
Ye. It's called a square.
a right angle triangle.
yes it can be a circle has no straight sides, but is symmetrical
A right angle triangle
A right angle triangle
A right-angle triangle.
A square and a rectangle.
rectangle
A Triangle~!
a triangle
A square or a rectangle.
A rectangle or a square: both have four sides and a right-angle of 90 degrees forming the four corners.