Patrick B. answered 02/10/21
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Math and computer tutor/teacher
Then the leg is 7*sqrt(2)/sqrt(2) = 7
45-45-90, the rule is hypotenuse = sqrt(2)*leg
7*sqrt(2) = sqrt(2) * leg
leg = 7
check: sqrt (7 ^2 + 7^2) = sqrt(49+49) = sqrt(98) = sqrt(2*7*7) = 7 * sqrt(2)