Not necessarily. It is a plane shape which could be horizontal.
Only when it is in the form of a right angle triangle that it will have perpendicular lines that meet at 90 degrees.
A right angled triangle is an example of a shape with exactly 2 perpendicular sides.
A right angle triangle.
I am sure there are several; the simplest would be a right triangle, which means, a triangle with a right angle.
A right angled triangle.
Right angle triangle, yup that's right
A perpendicular side is a right angle.A right angle is a perfectly L on any corner.The shape has to have no straight lines that meet.An example would be a triangle.
A right-angle triangle.
A right angle triangle
a right angled triangle
A rhombus.
The Right Triangle. Perpendicular lines make a right angle.