Question

A circle has an area of 26 pie centimeters. What is the diameter?
A) 6 cm
B) 1,296π cm
C) 12 cm
D) 12π cm

Answer 1

area must be pi 26 cm^2.
area = pi (radius)^2
26 pi = pi R^2 where r is radius.
26=R^2
R= sqrt{26}
diameter = 2R= 2sqrt{26}