Science

Math

Humanities

... and beyond

Socratic Meta
Featured Answers

Topics

What is the surface area of a cylinder with a height of 9 cm and a base diameter of 10 cm?

1 Answer

Oct 14, 2016

$439.82$ $439.82$

Explanation:

enter image source here

Surface area of a cylinder $= 2 π r^{2} + 2 π r h$ $=2pir^2+2pirh$ ,
where $r = r a d i u s$ $r=radius$ , and $h = h e i g h t$ $h=height$

Radius $r = \frac{1}{2}$ $r=1/2$ diameter

Given $h = 9, d = 10, \Rightarrow r = \frac{10}{2} = 5$ $h=9, d=10, => r=10/2=5$

Surface Area $= 2 \cdot π \cdot 5^{2} + 2 \cdot π \cdot 5 \cdot 9 = 439.82$ $=2*pi*5^2+2*pi*5*9=439.82$

Related questions

Impact of this question

8570 views around the world

You can reuse this answer
Creative Commons License