Answer:
you would have to use the Pythagorean theorem for that. The formula: a^2+b^2=c^2. In this case, a= 7, b= 4√2, and c= ? (the side you're solving for). Plug in the numbers into the formula. 7^2+4√2^2=c. You would solve the equation from there.
Step-by-step explanation:
