Are there two pairs of perpendicular lines in the figure?
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Are there two pairs of perpendicular lines in the figure?
Remember that perpendicular lines form a 90-degree angle.
We will mark the intersection points of the lines with the letter T to work out if the angles are right angles, as follows:
From the drawing, it seems there are 2 right angles, which means there are indeed 2 pairs of perpendicular lines.
Yes
What do the four figures below have in common?
Look for right angle markers (small squares) at intersections! These squares indicate 90° angles. Without these markers, you need to measure or use geometric properties to verify perpendicularity.
The quarter circle helps form the figure, but the perpendicular relationships are between the straight lines only. Focus on where the straight lines intersect, not the curved part.
A pair means two lines that are perpendicular to each other. So 'two pairs' means you need to find four different lines that form two separate perpendicular relationships.
No! In geometry problems, right angle markers (small squares) tell you which angles are exactly 90°. Trust these visual indicators rather than trying to measure.
Yes! Lines can be perpendicular even if they don't intersect within the visible figure. If you extend the lines, they would meet at a 90° angle.
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