Across
- 3. angle sum is 360 in polygons
- 5. equals(a+c)/2 if the diagonals are perpendicular in isoseceles trapezoid
- 6. of isoseceles trapezoid are equal
- 7. each interior angle is 120
Down
- 1. diagonals are in right trapezoid h^2=a.c
- 2. has eaqual diagonals
- 4. of trapezoid are parallel