Question

What is the lateral surface area of the cylinder?

12 cm²
18 cm²
216 cm²
288 cm²

What is the surface area of the cylinder?

12 cm²
18 cm²
216 cm²
288 cm²

Answer 1

\[LA = 2πrh\]\[SA = 2πr^2 + 2πrh\]

Answer 2

?

Answer 3

where r= radius
d=2r

Answer 4

o ok and that will be the answer

Answer 5

just substitute the values from the equation given above, LSA is lateral surface area and SA surface area

Answer 6

The formulas that I gave you tell you how to get the answers.
\[LA = 2πrh \implies 2(3.14)(6)(18)\]\[SA = 2πr^2 + 2πrh \implies 2(3.14)(6^2) + 2(3.14)(6)(18)\]

Answer 7

I'm really confused i got 600 for the first 1

Answer 8

well not 600 sumwer in the sixhundos

Answer 9

Should there be π symbols in front of all the answers?

Answer 10

If there are supposed to be π symbols there, then take out the 3.14.

Answer 11

behind th numbers yes

Answer 12

i got 216 for the first 1

Answer 13

So \[LA = 2(6)(18)\]\[SA = 2(6^2) + 2(6)(18)\]

Answer 14

Yes.

Answer 15

and 252 for the second 1

Answer 16

nvm i got 288

Answer 17

for the second 1

Answer 18

Alright. Yes. It's 288

Answer 19

thanks

Answer 20

np :)