Answer:
MN: 5
LM: 5
MO: 6
LN: 8
m<LMN: 140
m<MLC: 20
Explanation:
3:4:5 pythagorean triangle
angles in quadrilateral add up to 360. you know LMN and LON are the same and same gods for OLM and MNO.
The vertices are the same length because rhombi are symmetrical