Question

respondem essa pra mim alguém com calculos

Answer 1

y²=5,4.9,6
y²= 51,84
y²=5184/100
y= √ 5184/100
y=72/10
y= 7,2

x²= 5,4²+y²
x²= 29,16+ 7,2²
x²= 29,16+ 51,84
x²= 81
x=√ 81
x= 9