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Wrong!
The correct answer is a straight line.
line
Simply a line is formed......
No, two planes do not intersect in exactly one plane unless the planes are exactly overlapping, making one plane. In Euclidean Geometry two planes intersect in exactly one line.
A line. When two planes intersect, their intersection is a line.
Two planes intersect at a line. The line where they intersect pertains to both planes. In the same manner, if infinitely many planes intersect each other at the same line, then that line pertains to the infinitely many planes.
A line.
The intersection of two planes is one straight line.
A line is.
line
A line .
Planes.
Two planes intersect (not interscept) at an edge (or a line).
There are many options. Amongst them: An ellipsoid (including a sphere) intersected by two planes which do not, themselves intersect within the shape; A paraboloid intersected by two planes which do not, themselves intersect within the shape; A cone intersected by two planes which do not, themselves intersect within the shape; A semi-hyperboloid intersected by two planes which do not, themselves intersect within the shape; A toroid (doughnut) intersected by two planes which do not, themselves intersect within the shape; An elliptic prism intersected by two planes which do not, themselves intersect within the shape. The last of these would include a cylinder.
Simply a line is formed......
No, planes intersect at a line.
Two planes intersect at a line
A dihedral angle is the angle between two intersecting planes.