Across
- 4. the mathematician who found out a²+b²=c²
- 5. the bank gives_
- 6. what is x in algebra
- 7. a figure which is formed by two rays or lines that shares a common endpoint
Down
- 1. perimeter of a circle is called its_
- 2. the person who found the exact value of pi
- 3. a three sided polygon
- 4. a line which forms two right angles