which length could NOT represent the length of the third side

15 cm

7 cm

22 cm

18 cm

Thank you for the opportunity to help you with your question!

a=8cm b=14 cm

the third side must be bigger than the difference

c> b - a

c> 14 cm - 8 cm

c > 6 cm

and

the third side must be

smaller than the sum

c < b + a

c < 14 cm + 8 cm

c< 22 cm

therefore answer is:

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