What do the four figures below have in common?
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What do the four figures below have in common?
Upon observation we can see that all the lines intersect forming a right angle of 90 degrees.
Typically intersecting lines that form a right angle of 90 degrees are perpendicular and vertical lines.
Therefore, the correct answer is a.
All the figures are perpendicular
The lines below are not the same size, but are they parallel?
Look for right angle markers (small squares) at intersections, or lines that form perfect T-shapes or L-shapes. The lines should meet at what looks like a corner of a square.
Perpendicular lines intersect at 90° angles, like a plus sign (+). Parallel lines never meet - they're like railroad tracks that go on forever without touching.
Yes! Only straight lines can be truly perpendicular. Curved lines or shapes might meet at right angles at specific points, but we typically use 'perpendicular' for straight lines.
No - perpendicular lines always meet at exactly . If lines meet at any other angle (like 45° or 120°), they're just intersecting lines, not perpendicular.
Use a protractor to measure the angle where they meet, or check if a square corner (like from paper) fits perfectly in the angle. The angle must be exactly 90°.
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