
Angle between two planesPage navigation:
Definition. The angle between planes is equal to a angle between their normal vectors.Definition. The angle between planes is equal to a angle between lines l_{1} and l_{2}, which lie on planes and which is perpendicular to lines of planes crossing.Angle between two planes formulasIf A_{1}x + B_{1}y + C_{1}z + D_{1} = 0 and A_{2}x + B_{2}y + C_{2}z + D_{2} = 0 are a plane equations, then angle between planes can be found using the following formula
Examples of tasks with angle between two planesExample 1. To find an Angle between planes 2x + 4y  4z  6 = 0 and 4x + 3y + 9 = 0.
Solution. Let's use the formula:
Analytic geometry: Introduction and contentsDistance between two pointsMidpoint. Coordinates of midpointEquation of a lineEquation of a planeDistance from point to planeDistance between two planesDistance from a point to a line  2DimensionalDistance from a point to a line  3DimensionalAngle between two planesAngle between line and plane
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