cumilly cumilly

08-03-2016
Mathematics

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a small silver dollar pancake served at the restaurant has a circumference of 2pi inches. A regular pancake has a circumference of 4pi inches. Is the area of the regular pancake twice the area of the silver dollar pancake? PLEASE HELP THANKS

Respuesta :

khunnicutt khunnicutt

09-03-2016

pi = 3.14

2*3.14 = 6.28
4*3.14 = 12.56

area = pi [ C/ (2pi)] ^2
C= circumference

area of small = 3.14 (6.28/6.28)^2 =3.14
area of regular = 3.14 (12.56/6.28)^2 = 12.56

12.56/3.14 = 4

The regular pancake is 4 times the area.

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