Question

determine o valor de x nos triangulos retangulos

Answer 1

20^2 = 16x^2 + 9x^3

20^2 = 25x^2

25x^2 = 400

X^2 = 400/20

X^2 = 20

X= raiz quadrada de 20

9 x 5 = x^2 + 6^2

X^2 = 45 + 36

X^2 = 81

X= raiz quadrada de 81

X= 9