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Mathematics 7 Online
OpenStudy (anonymous):

PLEASE help on these 4 geometry questions? I need to submit my assignment. Two of them I just need the answers to be double checked, two of them I'm lost on...

OpenStudy (anonymous):

OpenStudy (anonymous):

For that one I got 7, but I don't know if it's right.

OpenStudy (anonymous):

OpenStudy (anonymous):

For the second one, I got 5.7 but I don't know if that's right either... And I have no idea how to do the 3rd one...

OpenStudy (anonymous):

OpenStudy (anonymous):

And that one I'm lost on too....

OpenStudy (anonymous):

@jim_thompson5910

jimthompson5910 (jim_thompson5910):

7 is correct for #1

jimthompson5910 (jim_thompson5910):

5.7 is correct for #2

OpenStudy (anonymous):

Awesome, thanks! Do you think you could help me on 3 and 4? :/ Sorry for all the questions, you explained them really good though. I was supposed to get help from my online teacher yesterday but I missed my time and my project is due today so I've got all these questions haha..

jimthompson5910 (jim_thompson5910):

solve for h |dw:1374279644243:dw|

OpenStudy (anonymous):

i got 5.1

jimthompson5910 (jim_thompson5910):

hmm that's a bit too high

OpenStudy (anonymous):

I'm not really sure how to do the part with 4 root 2 :o

jimthompson5910 (jim_thompson5910):

a^2 + b^2 = c^2 (4*sqrt(2))^2 + b^2 = 7^2 32 + b^2 = 49 solve for b

OpenStudy (anonymous):

4.1?

jimthompson5910 (jim_thompson5910):

yep

OpenStudy (anonymous):

how do I figure out the last one?

jimthompson5910 (jim_thompson5910):

by using the formula SA = 2*(LW + LH + WH)

OpenStudy (anonymous):

65.6? :)

jimthompson5910 (jim_thompson5910):

no, it's a bit too low

jimthompson5910 (jim_thompson5910):

L = 4 W = 4 H = 4.1

OpenStudy (anonymous):

ohhhh 97.6?

jimthompson5910 (jim_thompson5910):

yep

OpenStudy (anonymous):

Thank you SO much! You are a life saver. I really appreciate all the help. :)

jimthompson5910 (jim_thompson5910):

glad to be of help

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