Diagonals of Quadrilaterals

Parallelogram-Diagonals

What do you notice about the diagonals in a parallelogram? Manipulate the image to see if this remains true.

Rectangle-Diagonals

What do you notice about the diagonals in a rectangle? Manipulate the image to see if this stays true.

Rhombus-Diagonals

What do you notice about the diagonals in a rhombus? Manipulate the image to see if this stays true.

Square-Diagonals

What do you notice about the diagonals in a square? Manipulate the image to see if this stays true.

Trapezoid-Diagonals

What do you notice about the diagonals in a trapezoid? Manipulate the image to see if this stays true.

Isosceles Trapezoid-Diagonals

What do you notice about the diagonals in an isosceles trapezoid? Manipulate the image (move point A) to see if this stays true.