29. Find the amount required to make a circular path around a garden as shown
in the picture (shaded portion) if the rate is Rs 20 per sq metre.
13.5 m
28 m
Answers
Answered by
3
Answer:
Internal Radius = 21 m, External Radius =21+3.5=24.5 m
Area of path = π(24.5)
2
−π(21)
2
⇒π[(24.5)
2
−(21)
2
]
=500.5
Cost of travelling =500.5×4=Rs.2002
Step-by-step explanation:
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