Question

Qual o valor de x no triangulo??

Answer 1

Oi Viviane

(x + 2)² = x² + (x + 1)²

x² + 4x + 4 = x² + x² + 2x + 1

x² - 2x - 3 = 0

delta
d² = 4 + 12 = 16
d = 4

x1 = (2 + 4)/2 = 6/2 = 3

a = x + 2 = 5
b = x + 1 = 4
c = x = 3

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Answer 2

x+2+x+1+x=180
x+x+x=180-2-1
3x=177
x=177/3
x=59