Which situation could be BEST represented by a constant function? A. the temperature of a house with a thermostat setting of 74 degrees

B. the amount of water in a swimming pool as it is being drained

C. the speed of a passenger airplane during takeoff

D. the weight of a parked truck as furniture is being loaded

Given: ae ≅ ce ; de ≅ be prove: abcd is a parallelogram. we have that ab || dc. by a similar argument used to prove that △aeb ≅ △ced, we can show that △ ≅ △ceb by. so, ∠cad ≅ ∠ by cpctc. therefore, ad || bc by the converse of the theorem. since both pair of opposite sides are parallel, quadrilateral abcd is a parallelogram.