A circular track of width 2m is laid outside a cicular park of radius 18m. If the cost of laying the path is rs 8000/ square meter , find the total cost involved in laying the path.
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Answer:
Rs 1910880
Step-by-step explanation:
width of track = 2m
radius of park = 18m
total radius including the track = 18 + 2 = 20m
area of park including the track = 22/7 * 20²
= 1257.14 m²
area of park excluding the track = 22/7 * 18²
= 1018.28 m²
area of the track = 1257.14 -1018.28
= 238.86 m²
rate of laying the path = 8000/m²
total cost = 238.86 * 8000 = Rs. 1910880
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