Calculate the circumference of a circular field whose radius is 7 centimeters.
Options:
(A) 11 cm
(B) 15 cm
(C) 1 cm
(D) 4 cm
(E) 14 cm OK. Let's think. Some random thoughts first:
Circumference C is given by
C = 2r = 2*7 = 14 cm The answer: (E).