Question

A self help group want to manufacture jokers caps of 3cm. Radius and 4cm height.if the avalible paper sheet is 1000cm2 ,then how many caps can be manufacture from that paper sheet​

Answer 1

Step-by-step explanation:

base radius of the cap=r=3cm

height h=4cm

slant height l=√r²+h²

                    =√3²+4²=√9+16=√25

                    =5cm

curved surface area of cone=$\pi$rl

                              =22/7×3×25

                              =66×25/7=330/7cm²

area of sheet required=1000cm²

number of caps that can be manufactured from the sheet=1000/330/7

=1000×7/330=700/33=21

=21 caps

∴we can make 21 caps (approx)with required 1000² sheets

hope it helps you

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