Gardner want to fence a circular garden of diameter 21 metre find the length of the wire he needs to purchase and cost of it at rupees 4 per metre

The cost of wire to purchase is Rs 264.

Step-by-step explanation:

Given,

The diameter of the circular garden is 21 m

The radius(r) = m

To find, the length of wire of the fence we need to find the circumference.

Formula

The circumference of the circle = 2πr meter

=2× × m

=66 meter

So, the length of the wire = 66 m

The cost of wire Rs 4 per meter.

The total cost = Rs 4 × 66

= Rs 264

4a. is 3 miles every hour

4b. is 1/3 of an hour per mile

step-by-step explanation:

so then what are you asking?

step-by-step explanation: