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BTGmoderatorRO
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A thin piece of wire 40 meters long is cut into two pieces. One piece is used to form a circle with radius r, and the other is used to form a square. No wire is left over. Which of the following represents the total area, in square meters, of the circular and the square regions in terms of r?
A. π∗r2π∗r2
B. π∗r2+10π∗r2+10
C. π∗r2+14∗π2∗r2π∗r2+14∗π2∗r2
D. π∗r2+(40−2π∗r)2π∗r2+(40−2π∗r)2
E. π∗r2+(10−12π∗r)2
OA is E
Do I need a solid shape formula to solve this? The help of an Expert is needed here, please.Thanks
A. π∗r2π∗r2
B. π∗r2+10π∗r2+10
C. π∗r2+14∗π2∗r2π∗r2+14∗π2∗r2
D. π∗r2+(40−2π∗r)2π∗r2+(40−2π∗r)2
E. π∗r2+(10−12π∗r)2
OA is E
Do I need a solid shape formula to solve this? The help of an Expert is needed here, please.Thanks
