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https://vle.mathswatch.co.uk/images/questions/question805.png

 Dec 9, 2019
edited by Guest  Dec 9, 2019
 #1
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+1

a  =  sqrt  (8^2 + 5^2 ]   =  sqrt  [ 64 + 25 ]  =  sqrt [ 89]  ≈ 9.4  cm

 

b  =  sqrt [ 17^2 - 12^2 ]  =   sqrt  [ 289 - 144]  =  sqrt [ 145 ]   ≈  12  cm

 

 

 

cool cool cool

 Dec 9, 2019

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