There is no name for such a figure. Quadrilaterals such as a trapezium or kite or even one with no equal sides can have a right angle.
A right(-angled) triangle
It's a rhombus...
right angle triangle
rhombus
There is no name for such a figure. Quadrilaterals such as a trapezium or kite or even one with no equal sides can have a right angle.
A right(-angled) triangle
I would say a square, it has four right angles and four sides.
It's a rhombus...
A right triangle has three sides and one right angle.
right angle triangle
rhombus
Opposite and adjacent sides.
A parallelogram with one right angle has four of them. The name for this figure is a rectangle.
You use the points of the vertex and on the two sides. For example a right angle with a vertex of A and two sides B and C. would be Angle BAC
A right triangle.
legs