A uniform circular path of width 2m is laid outside acircular park of radius 50m. Find the cost of leveling the path at the rate of rs.5 per meter square
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Hlo mate :-
Solution :-
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R = 50+ 2= 52m
r = 50m
A = π(R+r)(R−r)
= 3.14 (52+ 50)(52 - 50)
=3.14(102)(2) = 640.56 m2 ans
:- cost of leveling the path at the rate of rs.5 per meter square
=> 5 × 640.56
= rs 3,202.8 Ans
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☆ ☆ ☆ Hop It's helpful ☆ ☆ ☆
Solution :-
_________________________________________________________________________________
R = 50+ 2= 52m
r = 50m
A = π(R+r)(R−r)
= 3.14 (52+ 50)(52 - 50)
=3.14(102)(2) = 640.56 m2 ans
:- cost of leveling the path at the rate of rs.5 per meter square
=> 5 × 640.56
= rs 3,202.8 Ans
_________________________________________________________________________________
☆ ☆ ☆ Hop It's helpful ☆ ☆ ☆
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