Answer :

Given.

Radius of cylinder and cone is 2 m

Height of cylinder is 3.5 m

Slant height of cone is 3.5 m

Formula used/Theory.

CSA of cylinder = 2πrh

CSA of cone = πrl

CSA of cylinder = 2πrh

= 2 × × 3.5 m × 2 m

= 44 m^{2}

CSA of cone = πrl

= × 2 m × 3.5 m

= 22 m^{2}

Total Area of cloth = 44 m^{2} + 22 m^{2}

= 66 m^{2}

Rate of cloth for 1 m^{2} = Rs. 1000

Rate of cloth for 66 m^{2} = Rs. 1000 × 66

= Rs. 66000

Cost of canvas is Rs. 66000

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