2
The volume of a cylindes is a 900 cm? Its height is
15cm find its lateral surface area and total surface
area.
Answers
Answered by
2
Step-by-step explanation:
Volume of Cylinder = πr²h
900 = 3.14 x r² x 15
900 = r² x 47.1
900÷47.1 = r²
r² = 19.10
r = 4.37
Lateral Surface of cylinder = 2πrh
= 2 x 3.14 x 4.37 x 15
= 6.28 x 4.37 x 15
= 411.654 cm²
Total Surface Area of cylinder = 2πr ( h+r)
= 2 x 3.14 ( 15 + 4.37 )
= 6.28 ( 19.37)
= 121.64 cm²
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