A semi-circular field of radius 14 m needs to be fenced with a wire. Find the length of wire required.
Given:
Shape: Semi-circle
Radius (rrr) = 14 m
Value of π\piπ = 3.14
Formula used:
The perimeter of a semi-circle:
Perimeter = πr + 2r
Solution:
Calculate the curved portion of the semi-circle:
πr = 3.14×14 = 43.96m
Add the straight diameter:
2r = 2×14 = 28m
Total perimeter:
Perimeter = πr +2r = 43.96 + 28 =71.96m
The calculated length of the wire required was approximately 71.96 m, which rounds to 72 m.
Thus, correct option is (d)
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