EG is the median of EFD

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm

What is the missing reason in the proof? segment addition congruent segments theorem transitive property of equality subtraction property of equality?

The area of the map is the product of the length and width. write and expression for the area as the product of the two binomials do not multiply