Around a circular park of radius 28m,There is a road of uniform width 7m outside it. Find the area of the road.use π = 22/7.
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HEYA MATE !
Radius of park=28m(let it be 'r')
width of road=7m
Radius of park+ road = 35m(Let it be 'R')
Area = πR²-πr²
=π(R²-r²)
=22/7[(35)²-(28)²]
=22/7(1225-784)
=22/7(441)
=22/7×441/1
=22×63
answer =1386m²
hope it helps
Radius of park=28m(let it be 'r')
width of road=7m
Radius of park+ road = 35m(Let it be 'R')
Area = πR²-πr²
=π(R²-r²)
=22/7[(35)²-(28)²]
=22/7(1225-784)
=22/7(441)
=22/7×441/1
=22×63
answer =1386m²
hope it helps
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