Janie's bedroom is 12 feet long and 10 feet wide. If she is going to put new baseboards around the entire room, how many feet of
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Hmmm recall, p=3, and "p" is the distance from the vertex to either, the focus or directrix, so if the focus is 3 units to one-side of the vertex, the directrix is 3 units to the other side
check the picture below
check the picture below