Question

determine o valor de x e y

Answer 1

Temos:

(4√5)²=m²+4²

16.5=m²+16

80-16=m²

m²=64

m=√64

m=8

h²=m.x

4²=8.x

16=8.x

x=16/8

x=2

y²=x²+4²

y²=2²+16

y²=4+16

y²=20

y=√20

y=2√5

Resposta: x=2  e  y=2√5