Question

the radius and height of cylinder is 7cm and 20 cm. Find curved surface area of cylinder.​

Answer 1

Answer:

880cm^2

Step-by-step explanation:

CSA of a cylinder= 2πrh

= 2x22/7x7x20

= 880cm^2

Answer 2

Given:-

• $\sf{Height\: of\: the \:cylinder = 20\: cm}$
• $\sf{Radius\:of\:the\:cylinder = 7\:cm}$

To find:-

$\sf{Curve\: Surface\: Area\: (CSA)\: of\: the\: cylinder}$

Solution:-

$\sf{Curved\:Surface\:Area\:of\:a\:cylinder = (2\pi rh)\:sq.units}$

= $\sf{CSA = 2\times \dfrac{22}{7} \times 7 \times 20\:\:cm^2}$

=$\sf{CSA = 880\:cm^2}$

Additional Information:-

• $\sf{CSA\:of\:a\:cylinder = (2\pi rh)\:sq.units}$
• $\sf{TSA\:(Total\:Surface\:Area\:Of\:a\:Cylinder) = 2\pi r(r+h)\:sq.units}$
• $\sf{Volume\:of\:a\:cylinder = (\pi r^2 h)\:sq.units}$

A cylinder is a figure with two circular bases and one curved surface.