Activity 3: Determine the relationship and give a reason from the given. Given Relationship Reason 1. mA = 60\xb0 and mzB = 120\xb0 2. ZE=40\xb0 and 2D=50\xb0 3. ZG=80 and ZF=80 4. Line CD intersect line EF at point M and form four right angles. 5. EDB and FDB share a common vertex of D and have a common side of DB