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1. A cylinder and a cone have equal bases.The height of the cylinder is 3 cm and thearea of its base is 100 cm². The cone is placedupon the cylinder. Volume of the solidfigure so formed is 500 cm?. Find the totalheight of the figure.Fig 7.10​

Answer»

Answer:

Let HEIGHT of cylinder and CONE be H and h

Step-by-step explanation:

The cylinder and cone have same bases

πr^2=πr^2

Area of Base = 100cm2.....Given

The Volume of solid figure=V cylinder +V cone

TOTAL Volume = πr^2H + 1/3π^2h

Substituting surface area:-

total VOL. = 100H+ 1/3 100h

500= 100x3 + 1/3x100h.......Total volume is given

500-300=100h

200x3=100h

h=6

Total height = H +h

Total height = 3+6

Total height=9cm



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