What did you learn about the concept of ethnocentrism

In trapezoid klmn, kj=19.2 and jm=22.5. identify ln.

Express -5 2/5 as an improper fraction.

Acentral angle measuring 160 degrees intercepts an arc in a circle whose radius is 4. what is the length of the arc the circle formed by this central angle? round the length of the arc to the nearest hundredth of a unit. a) 4.19 units b) 6.28 units c) 12.57 units d) 12.57 square units