Across
- 3. A type of proof used in mathematics.
- 5. a four sided figure where all sides are equal
- 6. a angle of 90 degree
- 8. a straight line extending in both sides
Down
- 1. the longest side of the triangle
- 2. A branch of mathematics that deals with shapes and figures.
- 4. a type of triangle where all angles are equal
- 7. the ratio of circumference to the diameter of the cirlce