Question

a circular field of radius 41 M has a circular path of uniform width V M along and side its boundary find the cost of paving the path and 25 per square metre

Answer 1

for the circular path the formula is Pi R square

equals to 22 upon 7

r means radius equals to 41m

therefore 22÷7×41

=128.85

${m}^{2}$

Turbo 1 m square equals to 25 rupees therefore 25 into 12 8.85 metre square answer equals to 3221. 428 rupees therefore 3222 rupees approx