Across
- 2. a straght line from the center to the curcumfrence
- 6. the middle point in a circle
- 7. each of the pairs of opposite angles made by two intersecting lines.
- 9. made up of various parts or elements.
- 10. either of two angles whose sum is 180°.
- 11. a math concept that measures the total length around the outside of a shape
- 12. two angles that are side by side and share a common vertex and a common side
Down
- 1. any straight line segment that passes through the centre of the circle
- 3. half of a circle
- 4. the measure of a region's size on a surface
- 5. he enclosing boundary of a curved geometric figure, especially a circle.
- 8. either of two angles whose sum is 90°.