7.3
Explanation
here we have a rigth triangle, so we can use the Pythagoren theorem ,it states that the sum of the squares on the legs of a right triangle is equal to the square on the hypotenuse
Step 1
Let
[tex]\begin{gathered} \text{side}1\text{ = 6.4} \\ \text{side}2=3.5 \\ \text{hypotenuse = h} \end{gathered}[/tex]
so, the P.T says
[tex](\text{side}1)^2+(side2)^2=(hypotenuse)^2[/tex]
replace
[tex]\begin{gathered} 6.4^2+3.5^2=h^2 \\ 53.21=h^2 \\ \text{square root in both sides} \\ \sqrt{53.21}=\sqrt{h^2} \\ 7.29=h \\ \text{rounded} \\ 7.3=h \end{gathered}[/tex]
so, the answer is
7.3
I hope this helps you
