Question

são dados A(2,5), B(10,1) e C(9,-2) calcule o perímetro do triângulo ABC

Answer 1

Bom dia

A(2,5)
B(10,1)
C(9,-2)

AB² = 8² + 4² = 64 + 16 = 80 = 5*16
AC² = 7² + 7² = 49 + 49 = 98 = 2*49
BC² = 1² + 3² = 1 + 9 = 10

AB = 4√5
AC = 7√2
BC = √10 

perimetro

P = 4√5 + 7√2 + √10 = 22