The length and breadth of a rectangle are in the ratio 5:3 and its area is 1215m^2 find the cost of fencing a rectangle garden at the rate of rupees 50 per mitre
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According to question
let the lenght and breadth of the rectangle be 5x and 3x
its area is given 1215 m²
as we all know area of rectangle is l×b
then,
5x × 3x = 1215 m²
15x² = 1215 m²
x² = 1215m²/15
x² = 81 m²
x = √81m²
x = 9m
length of the rectangle is 5x = 5×9 =45
breadth " " " " " 3x = 3×9 =27
there for fencing the garden at the rate of 50 per metre
perimeter of rectangle is 2(l+b)
acc. to question
2(45+27) ×50 rs.
144×50
5220
total cost for fencung the garden is = Rs.5220
let the lenght and breadth of the rectangle be 5x and 3x
its area is given 1215 m²
as we all know area of rectangle is l×b
then,
5x × 3x = 1215 m²
15x² = 1215 m²
x² = 1215m²/15
x² = 81 m²
x = √81m²
x = 9m
length of the rectangle is 5x = 5×9 =45
breadth " " " " " 3x = 3×9 =27
there for fencing the garden at the rate of 50 per metre
perimeter of rectangle is 2(l+b)
acc. to question
2(45+27) ×50 rs.
144×50
5220
total cost for fencung the garden is = Rs.5220
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