Find the surface area of the cylinder (please help)
2 answers:
2πr²+2πrh
Step-by-step explanation:
2/1*22/7*9/1*9/1+2*22/7*5/1*9/1
2*22*9+2*22*5*9
369+990
answer= 1359
Answer:
surface area we can also take it as total surface area
9 is the radius and 5cm is the height . as they asked total surface area we have to take the area of base so tht we can make it as
total surface area = csa of cylinder + area of base
we know that,
2pirh+pir²
pir(2h+r)
pir(2×5+9)
pir(10+9)
pir(19)
22/7×9×19
3762/7
=> 537.42 cm² is the answer.
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