Question

help ss below

Answer 1

@darkknight

Answer 2

do you know the formula for surface area for a cylinder?

Answer 3

yes

Answer 4

2 \[\pi \] r^2 + 2 [\pi \] r h

Answer 5

in case you dont
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Answer 6

test?

Answer 7

\[test\]

Answer 8

okay it works, sorry ab that

Answer 9

no its hw

Answer 10

no i was testing the equation toolbar, your good

Answer 11

oh ok

Answer 12

You are given the diameter (double the radius) and the height, it is enough information to figure out the surface area, plug in values for h and r (half the diameter) into the formula please

Answer 13

im confused a little

Answer 14

sure, so the formula is
\[2*\pi*r^2+2*\pi*rh\] we know the height is 18, the diameter is 7 so the radius is 3.5
plug in those values into the formula and evaluate please

Answer 15

ok

Answer 16

ok so i got 76.93+113.04

Answer 17

what do you notice about what you got compared to what the person in the problem got?

Answer 18

they rounded to the nearest whole number ?

Answer 19

They only had the 2*pi *r^2 and forgot about the 2*pi * r*h part of the formula that they had to add on

Answer 20

ohhhh ok

Answer 21

if you have to describe the error, put what I sent right there, for the answer evaluate 76.93+ 395.84

Answer 22

why are you telling me? lol you have to fill the hw problem not tell me

Answer 23

ohhh mb but thank you tho

Answer 24

^.^