una caja para envios con forma de prisma rectangular tiene un volumen de 7,776 pulgadas cúbicas. el area de la caja es 432 pulgadas cuadras cual es la altura de la Caja?

Taking algebra two apex courses and need with these questions

In the following diagram it is given that dec,ab || dc, ad || eb, and ad is congruent to bc. a)why isn't abc a parallelogram even though it has a pair of parallel sides and a pair of congruent sides b)explain why be must be congruent to bc. further explain what type of triangle this makes triangle abc and what it tells you about angle 1 and angle 2c) finally why must angle 3 be congruent to angle 1? further, explain why we know that angle 3 is congruent to angle 2

How can you construct perpendicular lines and prove theorems about perpendicular lines