You can't tell the perimeter from the area. There are an infinite number of different shapes,
all with different perimeters, that have the same area. Even if you only consider rectangles,
there are still an infinite number of those that all have the same area and different perimeters.
Here are a few rectangles with area of 6 square feet:
Dimensions ... Perimeter
0.75 x 8 . . . . . . 17.5
1 x 6 . . . . . . . . 14
1.5 x 4 . . .. . . . 11
2 x 3 . . . . . . . . 10
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What is the perimeter of 6 acres in feet?
Well, if you're talking about a square, then the perimeter is twice the length plus twice the width; in this case it would be 30 feet...
It is 20
36 square feet on the floor. 36 square feet on the ceiling. ( 6 x height of the room) on each wall. Total area inside the room is [ 24 times (3 + height of the room) ] square feet.
Because square foot is a measure of area, you would find square feet by using an area formula. Simply multiply the sides of an object, which in your case are 6 and 5 feet, to find the answer. Your object is 30 square feet total.