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gogolik [260]
1 year ago
13

twelve cookies are cut from a rectangle of dough measuring 12 inches by 16 inches. How many square inches of dough are left over

? Express your answer in terms of pi. I can upload picture
Mathematics
1 answer:
valentina_108 [34]1 year ago
5 0

Given:

Here twelve cookies are cut from a rectangle of dough measuring 12 inches by 16 inches.

Required:

How many square inches of dough are left over

the radius of cooke is 2 inches because if we cut cookie s in this formation and we get 4 cookies in horizontal so there are 4 diameter of each cookie and the total of these 4 diameter is 16.

So now the measure of one cookie is

\frac{16}{4}=4\text{ inches}

now the diameter of one cookie is 4 inches so by this we can find the radius

\begin{gathered} r=\frac{d}{2} \\ r=\frac{4}{2}=2\text{ inches} \\  \end{gathered}

now first we find the area of dough which isin rectangle shape

area of rectangle is

A_1=12*16=192\text{ inches}^2

now we have to find the area of 12 cookies

area of cookies is

A_2=12*\pi *r^2=12*\pi *4=48\pi\text{ inches}^2

now after cut dough for 12 cookies and the left over dough is

Final answer:

A=A_1-A_2=192-48\pi\text{ inches}^2

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