properties of isosceles trapezoid
theorem:
6-19
6-20
6-21
6-22
An isosceles trapezoid is a quadrilateral with two sides of equal length and two non-parallel sides. It has the following properties:
1. It has two pairs of parallel sides.
2. The two pairs of parallel sides are of equal length.
3. The two non-parallel sides are of different lengths.
4. The angles between the two pairs of parallel sides are equal.
5. The angles between the two non-parallel sides are also equal.
6. The diagonals of an isosceles trapezoid are of equal length.
7. The area of an isosceles trapezoid is equal to the product of the length of the two parallel sides and the distance between them.