SOLUTION: A rectangular picture frame has a length of x cm. and a width of 30 cm. If the diagonal is 50 cm, what is the length?

Question 825398: A rectangular picture frame has a length of x cm. and a width of 30 cm. If the diagonal is 50 cm, what is the length?

Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
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d = sqrt( LL + ww )
dd = LL + ww
LL = dd - ww
L = sqrt( dd - ww )
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x = sqrt( 50*50 - 30*30 )
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answer:
x = length = 40 cm
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