Question

calcule o valor de x nos triângulos retângulos

Answer 1

${8}^{2} = 4.x \\ 64 = 4.x \\ x = \frac{64}{4} \\ x = 16 \\ \\ ({20})^{2} = 16.x \\ 400 = 16.x \\ x = \frac{400}{16} \\ x = 25$