Isosceles Trapezoid Investigation
The figure below will always remain an isosceles trapezoid regardless of how you move the vertices.
1. Measure the diagonals of the isosceles trapezoid. Move the vertices around. Write a conjecture about the diagonals of an isosceles trapezoid.
2. Measure all the angles of the trapezoid. Move the vertices around. Write a conjecture about the base angles of an isosceles trapezoid.