Across
- 1. The symbol for Heron's formula is the Greek letter
- 5. triangle A triangle with all three sides of equal length is called
- 6. the area of a triangle is always positive, even if the triangle is
Down
- 2. The area of a triangle can be found using Heron's formula, which involves the triangle
- 3. The semiperimeter of a triangle is equal to half the sum of its sides.
- 4. the formula for Heron's formula was first discovered by the Greek mathematician