Calculate the missing angle and give a reason for your answer

1. what are the missing reasons in the proof 2. it's in the second picture and 3

Suppose i flip two identical coins. what is the probability that i get one head and one tail?

Aplot of land is shaped like a quadrilateral. fences are built on the diagonal to divide the area into 4 sections. what is vi to the nearest tenth? gv = 6.55fv = 5.84vh = 3.27vi = ?