1.

A rectangular piece of land measures 80m by50m. Three strands of wire are to be sold to fepthe land. What length of wire is required?

Answer»

length of land= 80 mbreadth = 50 m

perimeter of land = 2× length + breadth

perimeter = 2 × 80m+ 50m = 2× 130 = 260mhence perimeter of land = length of one strand of wire .

but three (3) strands of wires are required to fence the field .

length of one strand of wire to fence = 260

and length of three wires = 3 × 260m

= 780m

hence length of wire required to fence the field is . 780m.



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