Consider the given figures, answer the following questions:
1. What is common in the four figures?
2. What makes figures 3 & 4 different from figure 1 & 2?
3. Which among the four figures show perpendicularity? Check by using your protractor.
4. When are line said to be perpendicular to each other?
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Answer:
1. Four figures are composed of line segments, and the line segments in the figure intersect each other.
2. The line segment of Figure 3 and 4 intersect vertically, while Figure 1 and Figure 2 intersect only.
3. Figure 3 and Figure 4
4. When the angle between two lines is 90 degrees. When the angle formed by the intersection of two lines is a right angle (90 degrees), they are said to be perpendicular to each other.
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