The lines that are drawn at an angle (not 900) to the horizon are called Oblique Lines.
Oblique lines are neither vertical nor horizontal.
The above figure shows a triangle being cut by an oblique line.
A. Figure 1
B. Figure 2
C. Figure 3
D. Figure 4
Correct Answer: A
Step 1: Here, the lines in figure 1 are neither vertical nor horizontal.
Step 2: So, the lines in figure 1 are oblique lines.