Question

Gardener wants to fence a circular garden of diameter 21 metre find the length of the rupee needed to purchase if we make two rounds of the friends also find the cost of the rope if the cost rupees 4 per metre

Answer 1

Answer:

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Answer 2

Answer:

LENGTH OF ROPE = CIRCUMFERENCE OF CIRCLE.

DIAMETER IS 21 METRE

$circumference \: is \: 2\\pi \: r \: or \: \pi \: d$

WE WILL APPLY THE FORMULA 22/7 × 21

THE CIRCUMFERENCE IS 66 METRE.

WE WANT TO MAKE TWO ROUNDS SO THE CIRCUMFERENCE IS 66×2 = 132

COST OF ROPE AT 1 M IS 4 RS.

COST OF ROPE AT 132 M IS 132 ×4 = 528 rs.