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13 votes
K

5x-12
a
KimN is
parallelogren
calculate
3x+18
interior angles
Size

K 5x-12 a KimN is parallelogren calculate 3x+18 interior angles Size-example-1
User Bludwarf
by
5.3k points

1 Answer

10 votes

Answer:

marked angles (K, M): 63°, unmarked angles (L, N): 117°

Explanation:

Opposite angles are congruent in a parallelogram.

5x -12° = 3x +18°

2x = 30°

x = 15°

3x +18° = 3(15°) +18° = 63°

Angles K and M are 63°; angles L and N are supplementary, 117°.

User Scott Gribben
by
5.1k points