Answer:
The value of hypotenuse is 7cm.
Step-by-step explanation:
Given that c² = 49 so in order to find c, you have to square root both to get rid of square in c :
[tex] {c}^{2} = 49[/tex]
[tex] \sqrt{ {c}^{2} } = ± \sqrt{49} [/tex]
[tex]c = 7 \: or \: - 7(rejected)[/tex]