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Can I get help with these three please?

Can I get help with these three please?-example-1
User Eabraham
by
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1 Answer

3 votes
1) x=
square root ({15}^{2} - {9}^{2} )
all the others are the same method, just remember
the horizontal line^2 + the vertical line ^2 is equals to the line opposite the right angle^2
User Mehrdad Moradi
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