There is no special name for such a shape.
a quadrangle with only one right angle
A four-sided shape with one right angle is a quadrilateral. There is no more specific term, unless it has more than one right angle or has equal sides.
It is a triangle
a rectangle
maybe a trapezoid?
no its only a right triangle not another one
an angle with a acute and right angle
a square,trapzoeid,and a kite
you cannot make a regular shape which has 3 right angles only, you will always end up with 4 right angles
a right angle triangle.
A right angle triangle
True a triangle can only have 1 right angle because it wouldn't be a closed shape with 2
A right (angled) triangle.
a quadrangle with only one right angle
There is no special name for such a shape.
There is no special name for such a shape.