Juan, Pedro, Luis y José salieron hacia el club. Algunos se pararon a descansar en el camino. Juan iba en bicicleta. Pedro en moto. Luis corriendo y José caminando. Juan recorrió 5/6 del camino, Pedro 2/3, Luis 1/2 y José 11/12 del camino. ¿Quién está más cerca del club?

Given: abcd is a square. prove: ac ? bd. we are given that abcd is a square. if we consider triangle aeb and triangle aed, we see that side is congruent to side ad because sides of a square are congruent. we know that side ae is congruent to side ae by using the . finally, we know that side de is congruent to side because the diagonals of a square bisect each other. therefore, triangle aeb is congruent to triangle aed by congruency. we see that angle aed and angle aeb are a linear pair, and congruent by cpctc. thus, the measure of these angles will be 90°, and diagonal ac is perpendicular to diagonal bd by the .