Question

the cone is standing on the round bottomed hemisphere bring their flat faced together what is the total surface area of this story ​

Answer 1

2πr²  +  πrL  is surface area of a Cone lying on flat surface of Hemisphere

Step-by-step explanation:

Let say  r = radius of hemisphere = Radius of base of cone

& h = height of Cone

L =  latent Height =  √(r² + h²)

Surface area of Hemisphere = Curved surface area of hemisphere = 2πr²

( as on flat surface cone is there)

Surface are  of cone = Lateral Surface area of cone = πrL

( as base of cone is on flat Surface of hemisphere)

Total Surface area =  2πr²  +  πrL   sq unit

L = √(r² + h²)

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