Question

2. calculate the value of c
please help​

Answer 1

`{c}^(2) = {a}^(2) + {b}^(2) \\ {c}^(2) = ({7 √(2)) }^(2) + ( {7 √(2) ) }^(2) \\ {c}^(2) = 2(49 * 2) \\ {c}^(2) = 196 \\ c = √(196) \\ c = 13 \: units`