Given the irregular quadrilateral divided into two triangles, with a total
population of 2,100 people, calculate the population density.
(A) 50 people per square km
(B) 100 people per square km
© 150 people per square km
(D) 200 people per square km

To calculate the population density, you’ll need to know the area of the irregular quadrilateral. Population density is defined as the total population divided by the area. If you divide 2,100 people by the area in square kilometers, you can determine which option is correct; however, since you’ve mentioned specific options, let’s assume the area is already set for each option. If the area is 42 square km, you’d have 50 people per square km (2,100 ÷ 42).

In case the irregular quadrilateral has an area of 21 square kilometers, the density would be 100 people per square km. Without the actual area details, it’s vital to think about checking back with your geometric measurements!