Find the curved surface area of a cylinder diameter 20cm and length 10cm.
- 200 cm^2
- 628 cm^2
- 400 cm^2
Explanation from PART66Online
The curved (lateral) surface area of a cylinder is pi * diameter * length, equivalent to 2*pi*r*length. Here that is pi * 20 * 10, which is about 628 square centimetres. The 200 and 400 answers omit the factor of pi.
D
Daivaras asked · 26 Jan 2017
Please write your question here.
Community Comments (0)
No one has posted a comment here yet.
Please Sign In to post a comment.