geometry vocabulary

4. a solid figure bounded by plane polygons or faces
5. a line enclosing a plane area
7. ratio of the adjacent side to the hypotenuse of a right-angled triangle
10. is a part of the line segment that has only one endpoint.
11. a quadrilateral with one pair of parallel sides
13. is defined as a line intersecting two or more given lines in a plane at different points.

1. a parallelogram with four equal sides
2. formed when two lines meet each other at the right angle or 90 degrees.
3. the 90 degree angle between two perpendicular lines
6. a point equidistant from the ends of a line or the extremities of a figure obtuse angle
8. a triangle with two equal sides
9. a straight line from the center to the perimeter of a circle
12. angle between 90 and 180 degrees