Question

Lines g, h, and l are parallel and m ∠ 1 = 52°. What is m ∠ 11?

Answer 1

M∠1 and m∠4 are equal because they are vertical.
m∠4 and m∠ 8 are equal because they are corresponding.
m∠8 and m∠12 are equal because they are corresponding.
m∠12 and m∠11 are supplementary, so the m∠11 must be equal to 128 degrees.

Answer 2

Is there not a picture that goes with this question?