Question

the area of a rectangular field is 78 sq m. its length is 13m. find its breadth. if the cost of fencing is rs 55 per m how much would cost to fence the entire field for grade 6th

Answer 1

area of a rectangle = l × b
78 sq.m = 13 × b
78 ÷ 13 = b
6m = breadth

perimeter of a rectangle = 2( l + b )
= 2( 13 + 6 )
= 2 ( 19 )
perimeter = 38m

cost of fencing 1m = ₹55
cost of fencing 38m = 38 × 55
= ₹ 2090


thus,
breath = 6m
cost of fencing the field = ₹2090