human
Recognise perpendicular lines ![An image of 8 line segments on a square grid. AB is a vertical line measuring 4 units. CD is a diagonal line, with a positive gradient of 1.5. EF is a vertical line measuring 3 units. GH is a diagonal line with a negative gradient of -4/6. IJ is a diagonal line with a negative gradient of -3. KL is a diagonal line with a positive gradient of 1/3. MN is a vertical line measuring 6 units. OP is a diagonal line with a positive gradient of 6/4.]() Which line segment is perpendicular to IJ? EF
gpt
Confuses the meaning of perpendicular and vertical 