Question

3. [3.04] Describe a process for finding the measure of angle 2.

Answer 1

m<2 = 145

See process below.

Explanation:

Lines b and c are parallel.

m<4 = 55 by corresponding angles.

m<3 = 90 since lines a and d are perpendicular.

m<2 = m<3 + m<4 by the exterior angle of a triangle theorem.

m<2 = 90 + 55

m<2 = 145