Use the midpoint formula to determine whether diagonals of polygon bisect each other

Solve for n? [tex]z = \frac{3}{4} mn[/tex]

To prove that angle def = angle dgf by sas, what additional information is needed? def congruent to dgf dfe congruent to dfg de congruent to dg dg congruent to gf

The ratio of the perimeters of two similar triangles is 4: 3. what are the areas of these triangles if the sum of their areas is 130cm2?