A girl empties a cylindrical bucket, full of sand of base radius 18cm and height 32cm on the floor to form a conical heap of sand. If the height is 24cm find slant height correct upto one place of decimal
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base=18cm
height=32cm
area=1/2×b×h
1/2×18×32=288
height=24cm
base=?
area=288
base=2×area/height
2×288/24=24ans
height=32cm
area=1/2×b×h
1/2×18×32=288
height=24cm
base=?
area=288
base=2×area/height
2×288/24=24ans
mehul1045:
hello dear
Answered by
3
volume of cylinder = volume of cone
πr*r*h= 1/3 πr*r*h
π*18*18*32=π *r*r*24
r*r=18*18*2*2
r=36
by Pythagoras theorem
slant height = √36^2 + 24^2
L = 43.3 cm
πr*r*h= 1/3 πr*r*h
π*18*18*32=π *r*r*24
r*r=18*18*2*2
r=36
by Pythagoras theorem
slant height = √36^2 + 24^2
L = 43.3 cm
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