No because a quadrilateral has 4 sides whereas a triangle has 3 sides.
A right angle triangle
A right-angle triangle.
A square and a rectangle.
a triangle
triangle
a right angle triangle.
No because a quadrilateral has 4 sides whereas a triangle has 3 sides.
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 triangle has three sides and one right angle.
A right angle triangle
A right angle triangle
A right-angle triangle.
A square and a rectangle.
rectangle
A Triangle~!
a triangle