Another 45-45-90 triangle has a hypotenuse of 10√2. Find the side length. Set up the proportion and show work to solve.

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%