BD=√136=2√34
梯形的高=60/√136=30/√34,
AE=2√34-2×√﹙6²-[30/√34]²﹚=32/√34
梯形ABDE的面积=﹙1/2﹚×﹙30/√34﹚×[2√34+32/√34]=750/17≈44.118﹙cm²﹚