Question

calcule x nos casos

Answer 1

a)$8^2 +4^2 =y^2$
$64 +16 =y^2$
$80 =y^2$
$6^2 +y^2 = x^2$
$36 +y^2 = x^2$
$36 +80= x^2$
$116= x^2$
$x= 2\sqrt{39}$
b)$6^2 +4^2 =y^2$
$36 +16 =y^2$
$52=y^2$
$y^2+3^2=z^2$
$52+9=z^2$
$61=z^2$
$z^2 +(2 \sqrt{5})^2=x^2$
$61 +(2 \sqrt{5})^2=x^2$
$61 +4.5=x^2$
$61 +20=x^2$
$81=x^2$
$9^2 =x^2$
$x=9$
espero ter ajudado