pipe is 180 cm long. internal radius is 15 cm. external radius is 20 cm. find curved surface area inside and outside of pipe seperately. Then, find the total surface area of the pipe.
Answers
Answered by
2
Step-by-step explanation:
inside surface area = (2π*0.15*1.8)
= 1.69 m^2
outside surface area =(2π*0.2*1.8)
= 2.26 m^2
total surface area
= 2π*(0.15+0.2)*(1.8+0.2-0.15)
= 4.06 m^2
Similar questions