Isosceles Trapezoid Construction Template

The quadrilateral below is said to be an ISOSCELES TRAPEZOID. Move points A & B, the two smaller points on the bases of this trapezoid, and the white points outside the trapezoid all around. Then answer the questions that follow.

Without Googling, how would you define an [b]isosceles trapezoid[/b]? Complete the following sentence definition: [br][br]An [b]isosceles trapezoid[/b] is ...

Use the tools below to construct a quadrilateral that always remains an ISOSCELES TRAPEZOID (no matter where you drag its vertices)!

Rename two of the vertices you have here so that the isosceles trapezoid you created would be named [i]ABCD[/i].

At this point, right click on the dashed line and hide it. Use the tools of GeoGebra to construct and measure sides, angles, and diagonals. [br][br]After doing so, be sure to plot the point at which the diagonals intersect. Then hide the diagonals and construct the four smaller non-overlapping triangles that would be formed and measure their side lengths and interior angle measures. [br][br]Which of the following statements are true for an isosceles trapezoid?

Diagonals bisect each other. Entire diagonals are congruent. Both pairs of opposite sides are parallel. Only one pair of opposite sides is parallel. Both diagonals bisect a pair of opposite angles. Both pairs of opposite sides are congruent. Only one pair of opposite sides is congruent. Diagonals are perpendicular. It has two lines of symmetry. Only one diagonal gets bisected by the other diagonal. Only one diagonal bisects a pair of opposite angles. It only has one line of symmetry.

Isosceles Trapezoid Construction Template

The quadrilateral below is said to be an ISOSCELES TRAPEZOID. Move points A & B, the two smaller points on the bases of this trapezoid, and the white points outside the trapezoid all around. Then answer the questions that follow.

Use the tools below to construct a quadrilateral that always remains an ISOSCELES TRAPEZOID (no matter where you drag its vertices)!

Information: Isosceles Trapezoid Construction Template