Question

1) Resolva utilizando a fórmula a²=b²+c²:​

Answer 1

a) x^2 = 21^2+28^2
x^2 = 441 + 784
x^2 = 1225
x = 35

b) x^2 = raiz de 10^2 + raiz de 10^2
x^2 = 10 +10
x = 4,5

c) raiz de 29^2 = 6^2 + x^2
29 = 36 + x^2
x^2 = 29 - 36
x^2 = - 13
x = raiz de -13