Question

Plsss help meeeeeeee

Answer 1

x =
`√(99)`

Explanation:

Based on the Pythagoras theorem, where a and b are the legs of the triangle and c is the hypotenuse.

`c^(2)= a^(2) + b^(2) \\c = \sqrt{a^(2) + b^(2) } \\x = \sqrt{7^(2) + (5√(2))^(2)} \\x = √(99)`

Therefor x =
`√(99)`