Verified Answer :

PenguinAshley

the hypotenuse is a^2 + b^2 = c^2 so lets work in reverse
7^2 - 3^2 = b^2
49-9 = b^2
40 = b^2
since 40 has no square root the other leg is sqrt40 (sorry im on mobile no sqare root sign but you get the gist i hope)

Answer:

Square root of 40

Step-by-step explanation:

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