Question

Lauren over-filled the homemade pecan pie that she was baking for Thanksgiving, so the pie needed additional cooking time. Lauren decided to place a strip of aluminum foil around the edge of the crust so that it would not burn. If Lauren used a pie pan with a 12-inch diameter, how long, to the nearest inch, should the strip of foil be?

A. 19 inches
B. 24 inches
C. 113 inches
D. 38 inches

Answer 1

Answer: D

Step-by-step Explanation:

Circumference of a circle is : 2
`\pi \\` r

Radius: diameter/2

Plug into equation and round.

2
`\pi`(6) = 37.7 or 38.

Answer 2

Lauren should cut a 38-inch long strip of aluminum foil to go around the edge of a 12-inch diameter pie, as that is the approximate circumference of the pie's edge.

Step-by-step explanation:

The student is asking for the length of a strip of aluminum foil to go around the edge of a pecan pie with a 12-inch diameter. To find this, we need to calculate the circumference of the pie, which is the distance around the circular edge.

The formula for the circumference (C) of a circle is C = πd, where π (pi) is approximately 3.14 and d is the diameter of the circle. Since the diameter is given as 12 inches, we can plug that into the formula to get C = 3.14 × 12 inches, which equals 37.68 inches. To the nearest inch, Lauren should cut a strip of foil that is 38 inches long.