Geometry crossword

1. has a vertex and a circular base
4. the ratio of the measure of the leg opposite the acute angle to the measure of the leg adjacent to the acute angle
7. formula to calcul his area:(D*d)/2
9. chord that passes through the center of the circle
12. the ratio of the measure of the leg adjacent to the acute angle to the mesure of the hypothenuse
13. points that do not lie on the same plane
15. the distance around a circle

1. points that lie on the same line
2. a circle that passes through all three vertices
3. the part of a line that contains an endpoint and all points extending in the other direction
5. a prism where all sides are squares
6. quadrilateral with exactly one pair of opposite sides parallel
8. segment from the vertex to the midpoint of the opposite point.
10. the 2/3 of each mediane from the vertex
11. a round solid figure, or its surface, with every point on its surface equidistant from its centre
14. segment whose endpoints are the center of the circle and a point on the circle.