A region of intersection of three distinct planes on a three dimensional space is a) a point b) a straight line c) a point or a straight line

A region of intersection of three distinct planes on a three dimensional space is a) a point b) a straight line c) a point or a straight line

Need help with tree-dimensional figures

Container A is a rectangular prism who space face is a rectangle in the first quadrant with the adjacent sides on the coordinate axes (Measured in inches) and a vertex on the function: f(x)= (x-10)/(x-12)...

If a point P in the interior of a convex polyhedron in Euclidean space is called a pivot point of the polyhedron if every line through P contains exactly 0 or 2 vertices of the polyhedron. What is...

Let P be a square pyramid whose base consists of the four vertices (0,0,0),(3,0,0),(3,3,0), and (0,3,0), and whose apex is the point (1,1,3). Let Q be a square pyramid whose base is the same as the...

A rectangular box with a base 2 inches by 6 inches is 10 inches tall and holds 12 ounces of breakfast cereal. The manufacturer wants to use a new box with a base 3 inches by 5 inches. How...

what is the actual use of direction cosines... and wht happens actually when we consider direction cosines..please answer in detail..!