10 + 20 + 1 = 31. there are 2 tens place numbers and 1 one ones place number.
The answer is going to be H because if you plug in x from the table it will give you y.
1) 
and 
and 
bisect each other (given)
2) 
is a parallelogram (a quadrilateral with diagonals that bisect each other is a parallelogram)
3) is a rhombus (a parallelgoram with congruent diagonals is a rhombus)
4) 
(halves of congruent segments are congruent)
42.5 cm. Do you want me to explain it?
