Question

the cost of mowing a circular field at rs 16 per sq m is rs 2464. find;
a) the total area of the field
b)the radius of the circular field
c)cost of fencing the field at rs 12 per m​

Answer 1

HOPE IT HELPS YOU !!!!!

Answer 2

The total area of the field is 154 sq.m. , the radius of the circular field is 2.184 m and the cost of fencing the field is Rs.164.736

Step-by-step explanation:

The cost of mowing a circular field at rs 16 per sq m is rs 2464.

So, area of field =$\frac{2464}{16}=154 sq.m.$

Area of field = $\pi r^2$

So,$\pi r^2 = 154$

$\frac{22}{7} r^2 = 154$

$r = \sqrt{\frac{15 \times 7}{22}}$

r=2.184

Perimeter of field = $2 \pi r = 2 \times \frac{22}{7} \times 2.184=13.728 m$

Cost of fencing 1 m = Rs.12

Cost of fencing 13.728 m =$13.728 \times 12=Rs.164.736$

Hence the total area of the field is 154 sq.m. , the radius of the circular field is 2.184 m and the cost of fencing the field is Rs.164.736

#Learn more:

Find the cost of fencing a circular field of radius 560 m at Rs 3.25 per m

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