Answer:
C.
-633
Step-by-step explanation:
Length = 4/5 ft
area = 3/10 ft.
Width = 3/10 ÷ 4/5 ft
= 3/10*5/4 ft
= 3/8 ft
Perimeter = 2(L+W)
= 2(4/5+3/8) ft
= 2(32+15)/40 ft
= 47/20 ft
= 2.35 ft
Circumference is given by
C=2πr
From the information:
r=20 in
thus
C=2×π×20
C=40π inches
