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Determine missing side length?

 Mar 15, 2021
 #1
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we can use Pythagorean's theorem for this one. let's just call x the missing side length.

 

21^2 + 28^2 = x^2

441 + 784 = x^2

1225 = x^2

x = 35

 

so the missing side length is 35. 

 

by the way, the Pythagorean's theorem is \(a^2+b^2=c^2\)laugh

 

 

hope this helped! please let me know if you are still confused :)

 Mar 15, 2021
edited by euph0ria  Mar 15, 2021

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