Question

a gardener wants to find a circular garden of diameter 21 metre find the length of the wire he needs to purchase and cost of it st the rate of rs. 4 per meter .
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Answer 1

Answer:

Rs. 264

Step-by-step explanation:

Diameter of the circular garden = 21 m

Radius of the circular garden = 21/2 m

Circumference of the circular garden = 2πr unit

                                                             = (2 * 22/7 * 21 /2) m

                                                            = 66 m

Length of the wire required = 66 m

Cost of 1 m of wire = Rs. 4

Cost of 66 m = Rs. ( 66*4) = Rs. 264