Across
- 1. a line enclosing a plane area
- 3. angle the 90 degree angle between two perpendicular lines
- 6. a quadrilateral with one pair of parallel sides
- 7. ratio of the adjacent side to the hypotenuse of a right-angled triangle
- 8. an angle between 90 and 180 degrees
- 9. a parallelogram with four equal sides
- 11. a solid figure bounded by plane polygons or faces
Down
- 1. Lines are formed when two lines meet each other at the right angle or 90 degrees.
- 2. triangle a triangle with two equal sides
- 3. a straight line from the center to the perimeter of a circle
- 4. is defined as a line intersecting two or more given lines in a plane at different points.
- 5. is a part of the line segment that has only one endpoint.
- 10. a point equidistant from the ends of a line or the extremities of a figure