Best Answer

You can't tell. The perimeter doesn't tell you the length. The only thing you know

is that the length and width have to add up to 72 inches. There are an infinite

number of rectangles with different shapes that can do that.

Here are a few of them. All of these have perimeter of 144:

Length x Width

1 x 71

2 x 70

3 x 69

4 x 68

5 x 67

10 x 62

20 x 52

30 x 42

35 x 37

36 x 36

.

.

etc.

Q: What is the length of the rectangle if the perimeter is 144 inches?

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Area = 144 sq inches => Length of side, L = 12 inches => Perimeter = 4*L = 48 inches.

Width of rectangle: 144/18 = 8cm Perimeter of rectangle: 2*(18+8) = 52cm

48 inches.

--> 2 x 22, Area = 44 square inches --> 6 x 18, Area = 108 square inches --> 12 x 12, Area = 144 square inches

72

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Area = 144 sq inches => Length of side, L = 12 inches => Perimeter = 4*L = 48 inches.

Let the length be 4x and the width be x: 2(4x+x) = 60 8x+2x = 60 10x = 60 x = 6 So: length = 24 and width = 6 Area = length*width Area = 144 square inches

Width of rectangle: 144/18 = 8cm Perimeter of rectangle: 2*(18+8) = 52cm

144 inches.

48 inches.

--> 2 x 22, Area = 44 square inches --> 6 x 18, Area = 108 square inches --> 12 x 12, Area = 144 square inches

If the rectangle is a square, the perimeter is 48 cm. If not, there are a lot of possibilities.

72

L + W = P/2 = 72 feet L = 3W so L = 3/4 x 72 = 54 feet

48 inches.

You can't tell. There are an infinite number of triangles that all have a perimeter of 144.

48-ft