Barry records the height of a balloon from the ground, from 2 seconds after he let it go for 12 seconds. The function h(t) = |t + 2| − 1 models the height h feet over t seconds after he let the balloon go. What was the balloon's height from the ground when Barry stopped recording the height?

A. 1 ft
B. 3 ft
C. 13 ft
D. 15 ft

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.