the circular base of a cone is surmounted on base of cylinder. the height of cylinder is 0.7m and diameter 3m. slant height of con

1 thought on “the circular base of a cone is surmounted on base of cylinder. the height of cylinder is 0.7m and diameter 3m. slant height of con”

1. Answer:

   Diameter =28 m

   Radius =

   2

   28

   =14 m (=r)

   Height h=3 m

   Curved Surface area of Cylinder =2πrh square unit

   =2×

   7

   22

   ×14×3

   =264m

   2

   Cone:

   radius =14 m; h=10.5 m

   Slant height l=

   h

   2

   +r

   2

   =

   (10.5)

   2

   +14

   2

   =

   306.25

   =17.5 m

   Curved surface area of cone =πrl square unit

   =

   7

   22

   ×14×17.5

   =770m

   2

   Total surface area of the tent =264+770=1034m

   2

   .

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