Question

the radius of circular garden is 56m what would it cost to put afour round fence around this garden at a rate of 40 rupees per meter

Answer 1

hi friend
here's your answer looking for

CIRCUMFERENCE OF CIRCLE =
$2\pi \: r \\ \\ = 2 \times \frac{22}{7} \times 56 \\ \\ = 2 \times 22 \times 8 \\ \\ = 44 \times 8 \\ \\ = 352m$
now,

cost of one round =

$40 \times 352 \\ \\ = rs14080$

cost of 4 round =
$4 \times 14080 \\ \\ = rs56320$
hope you are satisfied with my answer

Answer 2

Heya friend,

Radius of the garden= 56m
Circumference of the garden = 2×22/7×56= 352m

Cost of fencing for 1m=Rs.40

Cost of fencing for one round= 352×40= Rs.14,080
Cost of fencing for four rounds= 14080×4= Rs.56,320

So the final answer is 56,320 Rs.


Hope it helps...!!!