Can you give me the work and the answers for these .

1. The diagonal is the hypotenuse so,
√[12² + 12²] = 16.97

2. The same process is done
51.96

3. Again, use the Pythagorean theorem
35.78

4. The perimeter is 44, so the length of a side is 11, the diagonal is
15.57

5. The diagonal is 20, the formula is
d =s√2
where d is the diagonal and s is the side
s = 14.14

Answerthe simplified expression isexplanationthe given expression is,let us deal with the bracket first.the two negatives in the parenthesis will become positive.the expression now becomes,we now expand the parenthesis to get,we group like terms to obtain,this simplifies to,