1. 70cm2; 266cm2

2. 100m2; 328m2
3. 322m2; 332m2
4. 350pi cm2
5. 522pi cm2

3 answers

Does anyone at connexus ever actually do their own homework?
What a nest of cheaters!
we're here to help other from not submitting the wrong answers to get low grade. yeah sometimes they should do their only work, but we'll give them answers or hints of what they need to do for their work.

And if you don't like that, then simply leave this site. It's very easy to do that instead of saying this.
*others