Answer
a) $4t^{2}$
b) 64 $in^{2}$
c) 14 in
Work Step by Step
a)
radius = t
diameter =2*t = 2t
diameter = side of box = 2t
area of box = 2t*2t = $4t^{2}$
b)
radius = 4
area = $4*(4^{2})$
area = 4 * 16 = $64 in^{2}$
c)
area = 196
side length = 196^{.5} = 14 inches
