Math, asked by Salwi, 1 year ago

The internal and external diameter of a hemispherical. Hollow vessel is 20 and 28 cm .find the cost of painting the vessel at ruppess 40 cm square

Answers

Answered by aasthapihu954
0
external radius (R)=14 cm
internal radius (r)=10 cm
area of the vessel=3*pie*(R^2-r^2)
                            =3*pie*(196-100)
                            =3*pie*96
                            =905.1 cm^2
   cost of painting = 40*905.1
                            =36204 rs
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Answered by asuryavarsha2016
1

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