Which list could not be the measures of lengths of the three sides of a given triangle?

I cannot give you the answer because you did not upload the list.
However, I can explain how to find the answer so you can solve it yourself:
→The sum of two sides must be greater than (not equal to) the length of the third side for ALL combinations of sides.

There are 3 sides to the triangle.  Let's call them a, b, and c.
a + b > c  must be True
AND
b + c > a  must be True
AND
a + c > b  must be True
 

A)26•2=52there are 2 sides with the same length116-52=64the other 2 side have to be half of 64 each64/2=32the width is 32b)make two sentences about these steps because your teacher knows how you write and explain things.