A solid cylinder of radius 7cm is 10cm long.find it's total surface area
2 answers:
Answer:
C. 238π cm^3.
Step-by-step explanation:
Surface area = 2 * area of the circular ends + area of the curved length
= 2π r^2 + 2π r* l
= 2 π 7^2 + 2π 7 * 10
= 98π + 140π
= 238π cm^3.
Answer:
c. 238πcm3
Step-by-step explanation:
Total surface area =
2pirh + 2pir^2
Given radius r = 7cm and
Height h = 10cm
Total surface area = 2 x pi x 7 x 10 + 2 x pi x (7)^2
140pi + 2 x pi x 49
140pi + 98pi
238pi cm^3
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