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Two sides of a triangle measure 10cm and 18cm. Which could be the measure of the third side of the triangle?

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s3>s2-s1 and s2+s1< s3

the third side must be greater than the difference of the other two sides

and must be less than the sum of the other two sides

s3 > 18-10

s3> 8


10+18 < s3

28 <s3

8<s3<28

User Kalana
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