Dynamic trapezoid
A trapezoid is a 4-sided plane figure with a pair of parallel sides. (Note that this doesn't exclude having two pairs of parallel sides.)
Move B to change the length of the first base.
Move C to change the length of the second base.
Move D to change the position of the second base.
Move E to change the height.
To gradually change a point, select the point and hold down an arrow key.
Can you make
- a parallelogram?
- a rhombus?
- a rectangle?
- a square?