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vlada-n [284]
2 years ago
12

Mrs. Simpson is frosting circular sugar cookies. Each cookie is 7 cm in diameter. How many square inches will she need to frost

one dozen cookies?
Mathematics
1 answer:
Alexus [3.1K]2 years ago
7 0

Answer:

51.92 square inches

Step-by-step explanation:

Area of a circle = (pi)(r^2)

if the diameter is 7, the radius is 3.5

A = 3.14 x 3.5

A = 10.99 cm^2 for one cookie

10.99 x 12 for a dozen = 131.88 cm^2

converting cm to inches, you divide by 2.54

131.88/2.54 = 51.92 square inches.

LMK if you have questions.

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Answer:

\large\boxed{(x-2)^2+(y-1)^2=34}

Step-by-step explanation:

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Substitute:

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(x-2)^2+(y-1)^2=(\sqrt{34})^2

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