Question

Calcule o valor de x em cada figura.

Answer 1

Resposta:

a) 10²=x²+6²

100=x²+36

x²=100-36

x²=64

x=√64

x=8

b) x²=48²+64²

x²=2304+4096

x²=6400

x=√6400

x=80 cm

Answer 2

$\Large\boxed{\begin{array}{l}\tt a)\\\sf x^2+6^2=10^2\\\sf x^2+36=100\\\sf x^2=100-36\\\sf x^2=64\\\sf x=\sqrt{64}\\\sf x=8\\\tt b)\\\sf x^2=48^2+64^2\\\sf x^2=2304+4096\\\sf x^2=6400\\\sf x=\sqrt{6400}\\\sf x=80\end{array}}$