สมการเชิงเส้น
Nuevos recursos
Descubrir recursos
- An excircle of a triangle is externally tangent to a side of the triangle and tangent to the extensions of the other two sides. Each triangle has three excircles.
- Pythagorean theorem in a square with a 45 degrees angle
- McClary, C
- Activity #18__the Distance or Length tool
- Eratosthenes' measurement of Earth's circumference