Question

the sides of a rectangular park are in the ratio 4:3 .if it area is 2028 sq .m find the cost

of fencing it at Rs 3 per meter

Answer 1

Answer:

Rs 546

Step-by-step explanation:

Let, length (l) = 4x, breadth (b) = 3x

        Area = l * b

or, 2028 = 4x * 3x

or, 12 x^2 = 2028

or, x^2 = 169

∴ x = 13 m

l= 52 m

b = 39 m

Perimeter = 2* (52+39)m         = 182 m

So, Cost = Rs 3 * 182

            = Rs 546

Answer 2

Hey mate!!!


Here is the answer to your query...


Cost of fencing 1 sq.m area = Rs 3
Cost of fencing 2028 sq.m area = 2028 × 3
= 6084 rs

Let us assume the measures of length and breadth be 4x and 3x respectively
Area of rectangle = 2028
l × b = 2028
4x × 3x = 2028
12x^2 = 2028
x^2 = 2028/12
x^2 = 169
x = \sqrt{169}
x = 13
Then,
Length of the rectangular park = 4x = 4(13)
= 52m
Breadth of the rectangular park = 3x = 3(13)
=39m
Hope it helps!!!
Please mark it as brainliest...


Regards