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Where do the points A and B lie?
true
Let's first look at the given figure. We know that AD is perpendicular to line l and ABCDEFGH is a cube.
We will determine whether the given statement is true, false, or cannot be determined. The statement is as follows.
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Statement |
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AB lies in plane M. |
For AB to lie in plane M, both A and B have to lie in plane M. We found in a previous exercise that square ABCD is in the plane M. Note that if square ABCD is in the plane, the vertices of the square are also in plane M. This means that vertices A and B lies in the plane. Therefore, AB lies in plane M. Let's see this in the given figure!
Looking at the figure, we can see that points A and B lie in plane M. Therefore, the statement is true.