along diameter 28/4 + 1 = 8
around semicircle pi D/2 = 14 pi = 14(22/7) = 44 meters or 11 spaces
none at ends, already there, so
11-1 = 10
total of 18
A plot of land is in the shape of semicircle of diameter 28 meters.
The plot fenced by erecting posts 4 meters apart. How many posts were used? (Take π
=22/7)
1 answer
1 answer