At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
area = 2 · π · r · (r + h)=surface area
lateral area = 2*3.14*rh
I must be doing it wrong because ive tried both ways and i still get it wrong
what are the figures?
A=2πrh (for lateral area)
it says use the net to find the latreal area of the clyinder diamter is 12 hieght is 15
also says give your answer in pi , which i dont understand
im using the correct formula but i still get it wrong
since the diameter is 12 the radius will be 6 since tha radius is half of diameter
the answer i got for surface area is 791.68
thats the same that i got , it still says incorrect
probably approximate it
565.49 for the lateral area
nope , neither work , ive tried it all it still says its incorrect , maybe because it says it needs to be in pi?
i guessing you should put pi at the end of the answer??
I have tried that too!!! This is driving me insane!!
did you put the units cm or m^2 since its area
yes i did
Do you have to show working??
No i dont have to show my work
do you see the cylinder? surface area is made up of 2 circles area of each is Pi * r^2 where r is the radius of the circle and the lateral surface which is like a rectangle if you were to "open" down the side. the length the circumference of the circle, 2*pi* r and the width is the height of the cylinder, h
total surface area = 2*pi*r^2 + 2*pi*r*h = 2 *pi*r ( r + h)
OHHH ok now its correct!!! THANK YOU
the diameter here is 12 which is 2*r so r = 6 the height is 15 substituting in the formula use 3.14 for pi unless told to give exact
sorry for not being much help at all @lunasee at least you got the answer..............most important!!!!
@kalahkid U did help!! Thank you:) i faned!
@lunasee do you have any questions about my detailed response or you just forgot to close the question?
Nope! Just forgot to close it lol XD