The diameter of a circular garden is 42 m. What is the cost of fencing it at Rs 25 per metre ?
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Solution :
Diameter of the circle ( d ) = 42 m
circumference of the circle (C) = πd
= ( 22/7 ) × 42
= 22 × 6
= 132 m
Now ,
it is given that ,
Cost of fencing 1 m = Rs 25
Cost of fencing 132 m = 25 × 132
= Rs 3300
•••••
Diameter of the circle ( d ) = 42 m
circumference of the circle (C) = πd
= ( 22/7 ) × 42
= 22 × 6
= 132 m
Now ,
it is given that ,
Cost of fencing 1 m = Rs 25
Cost of fencing 132 m = 25 × 132
= Rs 3300
•••••
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