Area of a Trapezoid

SLOWLY slide the dragging tool. Notice that the trapezoid is being doubled and rearranged to form a parallelogram. The height of this parallelogram is the height of the trapezoid, the length of the parallelogram is not as clear. What do you think the length of this parallelogram is?

The area of the trapezoid is going to be ______ the area of the parallelogram.

Knowing this, which of the following formulas can you deduce will be the formula to find the area of a trapezoid?

Select all that apply
  • A
  • B
  • C
Check my answer (3)