Why do you think that you're doing something wrong?Not sure what I'm doing wrong...
Your image is sideways (hard to read) and waaaaaaay too small. I think the written portion of the image says the following:
top view: +---------+.. | | `. |4' | | | | ,' +---------+'' 6'
Does this mean that I correctly guessed the exercise? If not, then my step-by-step instructions are wrong. Please confirm or correct.Thank you so much!
To avoid decimal round-offs, and the resulting round-off errors.But I'm not sure why I shouldn't round off pi?
Do the computations in the usual way. Leave "\(\displaystyle \pi\)" as "\(\displaystyle \pi\)". It's just like if you were multiplying 3 and 5, but they told you to "write the product, but do not simplify", so you'd end up with 3*5 rather than 15; or if you're adding terms like 2x and 3, so you end up with "2x + 3", because the terms are unlike and cannot be combined.How to I figure out the surface area without doing that?
Unfortunately, this is a very small image, so I can't be sure what you're doing. (For instance, it looks as though you counted the semicircular regions from the top and bottom twice, rather than following the instructions provided.) Also, since we don't know what the target answer is, we cannot comment on whether round-off errors may be contributing to your issues.I tried to redo the problem following your steps best I could, and I came up with I different answer. Every time. That's why I don't understand what mistake I'm making, and if it's the rounding off pi could you help me understand why that is? Thanks! Here is the problem redone:
View attachment 9200