The distance between New York City and Los Angeles is 31 inches. If the scale of the map is 1 inch: 90 miles , what is the actual distance between New York City and Los Angeles? A: 2,560 miles
B: 2,370 miles
C: 2,790 miles
D: 2,950 miles

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.