Mathematics for IGCSE & O level - Mensuration (Section 5 - No. 29)
A farmer wants to enclose a rectangular field with a length of 60 meters and a width of 40 meters with fencing. How much fencing does he need?
100 meters
200 meters
2400 meters
2000 meters
설명
Perimeter = 2 * (60 + 40) = 200