Question

the diameter of a circular plot is 14 how much will it cost to spend the plot with 4 rounds of wire at the rate of 45 rupees / m​

Answer 1

Answer:₹7,920

Step-by-step explanation:

Radius=7 m

Circumference=2πr

=2*22*7/7

=44 m

4 times=44*4

=176 m

Cost=176*45

=₹7,920

Answer 2

Answer:

Diameter of a circular plot= 14 m

Radius=

$\frac{14m}{2} = 7m$

Cicumference of 1 round=

$2\pi r = 2 \times \frac{22}{7} \times 7m \\ = 2 \times 22 \times 1m \\ = 44m$

Circumference of 4 round

$2\pi r \times 4 \\ = 44m \times 4 \\ = 176m$

Cost of constructing circular plot at 1m= Rs. 45

Cost of constructing circular plot at 176m=

$45 \times 176m \\ = 7920$

So, Cost of constructing circular plot at 176m is

Rs. 7920

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