Q. 8
Question
What is the definition of a cylinder? What is the directrix?
What is a ruling?
Step-by-Step Solution
Verified Answer
A cylinder has two distant parallel circular bases which are connected with a curved surface at a fixed distance from centre.
1Step 1. Definition of a cylinder
One of the fundamental three-dimensional shapes in geometry is the cylinder, which has two distant, parallel circular bases. At a fixed distance from the center, a curved surface connects the two circular bases.
2Step 2. Definition of a directrix
The curve C of a cylinder is termed to be its directrix
3Step 3. Definition of a ruling
Rulings are the lines pf a cylinder that pass through a given plane curve and are parallel to the given line L
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