Final answer:
The measure of angle 2 (m2) in the rectangle ABCD is 42°.
Step-by-step explanation:
To find the measure of angle 2 (m2) in rectangle ABCD, we need to use the fact that opposite angles in a rectangle are congruent. Since angle 1 (m1) is given as 42°, m2 will also be 42°. Therefore, the answer is Option B) m2 = 42°.