Find the total surface area of a cylindrical pipe of thickness 2 cm. The external diameter of the pipe is 21 cm. and it's length is 3 cm.
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n z s ma hnn s bn sms ksbs db s gb sndb mn sb es be n ss bdnvdnd cv mn CMB d bn s kb d sv mss many Rd
navs vsmsvs kb djd bn jd dnd be ns d nd d add dd dmms ss
Step-by-step explanation:
s mn s bn z s z cv class s s s bn s mn ssbs gb s s bsbsbsbssbsbsbdbdbdbdbs nsbssnvss z d ss s mn s cn s bn s bn s d
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