Question

determine o valor de x​

Answer 1

Aplica teorema do Pitagoras 3 vezes.

4^2+6^2=z^2

16+36=z^2

z=raiz(52)

y^2=raiz(52)^2+3^2

y^2=52+9

y=raiz(61)

x^2=2raiz(5)^2+raiz(61)^2

x^2=(4 x 5)+61

x^2=20+61

x=raiz(81)

x=9