The hypotenuse of a 45° 45° 90° triangle measures 7 square root units. what is the length of one leg of the triangle?

Sherrie is baking a pie for her family. she leaves the room and comes back to 35% of the pie having been eaten before she can put the topping on. how much 1 square inch strips of dough will she need for the top, now that a portion is missing? round your answer to the nearest while nimber.