The diameter of the base of a right circular cylinder is 21 cm and it's height is 14 cm. It's curved surface area is
I) 35 cm ii) 70cm. iii) 55cm. iv) 35/2 cm
I) 35 cm ii) 70cm. iii) 55cm. iv) 35/2 cm
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Answer:
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Verified answer
Answer of this is 924 cm²
Step by step explanation
Given
Diameter =21 cm , so radius=21/2
Height= 14cm
Using,
C.S.A of cyclinder =2(pi)rh
=2×22/7×21/2×14
=22/7×21×14
=22×21×2
=924cm²