Find the area of the figure 8cm 5cm 10cm 12cm

Brook states that the distance on the line is 4 units. caleb states that the whole line does not have a distance because it continues on forever. vivian states that the line is 6 units long. which distance did brook measure? which distance did vivian measure?

In which figure is de bc ? a. figure 1 b. figure 2 c. figure 3 d. figure 4

Anyone know? will mark brainliest if correct