Dec 28, 2018 · Now we construct another line parallel to PQ passing through the origin. This line will have slope `B/A`, because it is perpendicular to DE. Let's call it line RS. We extend it to the origin `(0, 0)`. We will find the distance RS, which I hope you agree is equal to the distance PQ that we wanted at the start.

Siil macaan 2020perpendicular Ask them to describe how they recognise when two lines are perpendicular; for example, they might say that they would cross or meet (intersect) at right angles. Line segments can be described as perpendicular if, were they to be extended, the extended lines would intersect at 90°, so these two straight lines are perpendicular:

some others. Geometry as a science got its further development in ancient Greece in the 7-5 century B.C. Тест на понимание We have been studying plane figures which have only two dimensions; length and width. In a right prism the lateral faces (sides) are perpendicular to the bases.