the external and internal diameter of hollow hemispherical vessel are 25cm and 24cm.The cost of painting is rupees .05 per cm square then find the total cost
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internal radius=12cm,
ext.radius=25/2cm,
now total surface area,
22/7(3*25/2*25/2 + 12*12);
22/7(3*625/4+144);
22/7(1875/4+144);
22/7(2451/4);
cost=22/7*2451/4*(.05);
RS 96.30
hope answer helps you
please mark as brainliest.. plzzzzz
ext.radius=25/2cm,
now total surface area,
22/7(3*25/2*25/2 + 12*12);
22/7(3*625/4+144);
22/7(1875/4+144);
22/7(2451/4);
cost=22/7*2451/4*(.05);
RS 96.30
hope answer helps you
please mark as brainliest.. plzzzzz
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