Question

Me ajudaaaaaa!
Calcule x:

Answer 1

x² = 3²+4²
x² = 9+16
x = raiz de 25
x = 5

Answer 2

Por se tratar de um triangulo retângulo podemos aplicar o teorema de Pitágoras:

$\mathsf{x^2=3^2+4^2}\\\\\mathsf{x^2=9+16}\\\\\mathsf{x^2=25}\\\\\mathsf{x=\sqrt{25}}\\\\\boxed{\mathsf{x=5}}\: \: \checkmark$