Find 2 mistakes

I did a search for “volume formulas” and the second image returned was this one.  I almost provided these posters to a student until I noticed two mistakes…



  1. I spent a while looking at the picture of surface area looking for two mistakes and only found one, unless you count aesthetic mistakes with shading (sphere looks flat, cylinder looks like it has no top). Then I clicked on the link. Ouch!

    Have you contacted the publisher? That's embarrassing for them!


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