What do the 4 figures below have in common?
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What do the 4 figures below have in common?
Let's first think about the different definitions of various lines.
We can see that what is common to all of the lines is that they intersect each other, meaning they have a point of intersection.
Remember that lines that cross each other are lines that will meet at a certain point.
Therefore, the correct answer is (a).
All show intersecting lines.
The lines below are not the same size, but are they parallel?
Intersecting lines simply cross each other at any angle. Perpendicular lines are a special type of intersecting lines that meet at exactly angles.
No! Parallel lines never meet or cross each other. They maintain the same distance apart forever. If lines intersect, they cannot be parallel.
While all figures show intersecting lines, they don't all show the same angles. Some may be perpendicular (90°), others at different angles, but they all have the common property of crossing.
Look for places where lines cross over each other. The key is finding the intersection point where two or more lines meet, regardless of the angle they form.
If lines don't actually touch or cross, they're not intersecting! They might be skew lines (in 3D) or simply separate lines that appear to cross due to perspective.
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