Sonya wants to sew ribbon along each side of a square pillow. If the pillow has an area of 144 square inches, how much ribbon must she buy to have the exact amount that she needs? Enter your answer in the box.
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Given,
Area of square pillow = 144 sq. inches
To find,
The length of necessary ribbon that is needed to sew the four sides of the given square pillow.
Solution,
We can simply solve this mathematical problem by using the following mathematical process.
The necessary length of ribbon = Total length of four sides of the square pillow = Perimeter of square pillow
Let, the length of one side of square pillow = a inches
Area = a² sq. inches
According to the data mentioned in the question,
a² = 144 [area = a², as the pillow is square]
a = 12
Perimeter of the square pillow = 4a = 4×12 = 48 inches
Hence, the necessary length of ribbon is 48 inches
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