Grades 1-2 Video Solutions 2019-2019Levels12prob13

Video Transcription

Problem number 13. Four strips are woven into a pattern as shown. What do you see when you look at it from the other side?  Because these strips are woven together, the parts that are covered on this side will be visible on the other.  First, let's notice that in the original picture, the gray strip is behind both red strips.  That means that from behind, we would see the bottom gray strip and it would not be covered at any point. This means that only answers B and E are possible.  If we look at these two answers, in E, the gray strip is not woven through at all, whereas in our original picture, it is woven.  That is, in one part, the red strip is over and in the other, it's under. And actually, since we would be looking at it from behind, we would have to turn around  and this top part would look exactly the same from the back as it does from the front. And that lines up with answer B. So this answer is answer B.

Video Summary

The problem involves determining the appearance of a woven pattern from the opposite side. Four strips are intertwined, specifically noting that the gray strip is behind two red strips in the original view. Therefore, when viewed from the back, the gray strip becomes fully visible on top. This leaves only two possible answers, B and E. Further examination eliminates E, as it does not correctly show the weaving pattern of the gray strip. Thus, answer B correctly represents the back view of the woven strips, maintaining the integrity of the weaving with visible patterns consistent from the opposite perspective.

Keywords

woven pattern

opposite view

gray strip

weaving integrity

back view