Figure JKLM is a parallelogram. The measures of line segments MT and TK are shown.

Parallelogram J K L M is shown. Diagonals are drawn from point J to point L and from point K to point M and intersect at point T. The length of line segment M T is 8 y + 18 and the length of line segment T K is 12 y minus 10.


Parallelogram A B C D is shown. Angle B is (3 n + 20) degrees and angle D is (6 n minus 25) degrees.

What are the measures of angles B and C?

∠B = 15°; ∠C = 165°
∠B = 65°; ∠C = 115°
∠B = 65°; ∠C = 65°
∠B = 15°; ∠C = 15°