Question

em cada caso, registra se o triângulo de vértice A, B e C é...​

Answer 1

A (1,6), B (2,3) e C (4,5)

Distance AB  

xAB = xB - xA = 2 - 1 = 1  

yAB = yB - yA = 3 - 6 = - 3  

AB² = xAB² + yAB² = (1)² + (- 3)² = 10  

AB = √10  

Distance BC  

xBC = xC - xB = 4 - 1 = 3  

yBC = yC - yB = 5 - 3 = 2  

BC² = xBC² + yBC² = (3)² + (2)² = 13  

BC = √13  

Distance AC  

xAC = xC - xA = 4 - 1 = 3  

yAC = yC - yA = 5 - 6 = - 1  

AC² = xAC² + yAC² = (3)² + (- 1)² = 10  

AC = √10