Across
- 4. it looks like a rectangle, but the sides are equally long
- 7. the symbol for this word is ∆
- 10. the _________ for calculating the area of a rectangle is Area = Length x Width
- 12. Pythagoras was a Greek ____________
- 13. one of the sides in a right-angled triangle is called a ______
Down
- 1. the formula for calculating the ______ of a square is A = Length x Length
- 2. a triangle has three angles and three ________ s
- 3. in the ____________ 2x + 1 = 7, what is x?
- 5. a2 + b2 = c2 is the formula for Pythagorean _________
- 6. β = 60° - what does the symbol means?
- 8. the longest side in a right-angled triangle is called a _______
- 9. an angle of 90° is a _______ angle
- 11. the measurement of how long something is