Consider the following work breakdown structure: Time Estimates (days) LikelyPessimisticStartA, B - - - AC, D 44 50 56 BD 45 60 75 CE 42 45 48 DF 31 40 49 EF 27 36 39 FEnd 58 70 82 What is the probability that the critical path for this project will be completed within 210 days

If m∠abc = 70°, what is m∠abd? justify your reasoning.  using the addition property of equality, 40 + 70 = 110, so m∠abd = 110°.  using the subtraction property of equality, 70 − 30 = 40, so m∠abd = 30°.  using the angle addition postulate, 40 + m∠abd = 70. so, m∠abd = 30° using the subtraction property of equality.  using the angle addition postulate, 40 + 70 = m∠abd. so, m∠abd = 110° using the addition property of equality.