Question

A wooden toy is in the form of a cone surmounted on a hemisphere. the diameter of the base of the cone is 6cm and irs heights is 4cm. find the cost of painting the toy at the rate ₹7per 100 cm square.​

Answer 1

Answer:

Radius =3cm

Height =4cm

CSA=πrl

22/7*3*5

=3.14*3*5

=47.1cm²

Cost =5/1000*47.1

=Rs. 0.2355

Radius of hemisphere=3cm

CSA =2*22/7*3*3

=56.52cm²

Cost,=5/1000*56.52

=282.6/1000

=0.2826

Total cost of painting =0.2355+0.2826

=Rs 0.5181

Step-by-step explanation:

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