Across
- 2. two points on the same plane
- 4. half a circle
- 5. shapes that are equal in size
- 10. the height of an object or point in relation to sea level or ground level
- 12. the amount of space in a shape
- 13. the relationship of one thing to another in terms of quantity, size, or number
- 14. a surface or shape that is or would be exposed by making a straight cut through something, especially at right angles to an axis
- 15. either of the angles of a triangle that have one side in common with the base
- 16. having only interior angles measuring less than 180
- 17. joining two opposite corners of a square, rectangle, or other straight-sided shape
- 18. a triangle with angles less then 90 degrees
- 19. two sides are equal
Down
- 1. the distance around something
- 3. all sides are equal
- 6. the angle between a side of a rectilinear figure and an adjacent side extended outward
- 7. having the same vertex
- 8. An angle at the center of a circle with end points on the circles circumference
- 9. lying in the same straight line
- 11. a segment that connects the midpoints of two sides of a triangle
- 20. a straight line joining the ends of an arc a part of the circumference of a circle or other curve