The circumference of a right circular cylinder is77 cm.Find the total surface area if the height is 1.2m. express the answer in cm
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Answer:
101156 cm sq.
Step-by-step explanation:
TSA of cylinder= 2×area of base + CSA
CSA= circumference × height
height = 120 cm
therefore CSA= 77× 120
=}9240cm sq.
2πr=77
r=120.95
area of base=πr^2=45958 cm sq. aprox
TSA=91916 + 9240
=101156cm sq.
ans . may differ with the value of π
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