Mathematics Stack Exchange
Mathematics Stack Exchange

Questions tagged [plane-geometry]

Plane geometry is a subfield of Euclidean geometry, restricted to the flat two-dimensional space. Plane geometry studies shapes, ratios and relative locations of 2D figures which can be embedded in a 2D plane.

Plane geometry is a subfield of Euclidean geometry, restricted to the flat two-dimensional space. Plane geometry studies shapes, ratios and relative locations of 2D figures which can be embedded in a 2D plane.

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i need help with a calculus 3 problem involving lines and planes in space

Find a plane containing the point $(-2,3,4)$ and the line of intersection of the planes $-6x - 5y + z = - 3 $ and $-8x + 5y + 3z = -79$ I do not know what to do after you solve for both sets of x,y, and z.
Alan Cecil
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Light rays in a prism

While studying about path of light rays while passing through a prism, I noticed that: Although the prism is a 3d object, only a cross section of the prism is considered enough to talk about light rays. This cross section is the area of meeting of…
user194517
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In a trapezium ABCD, AB||CD, angle B = 1/2D. If AD = q and DC = p, find AB.

In a trapezium $ABCD$, $AB||CD$, angle$B$ = $\frac{1}{2}D$. If $AD = q$ and $DC = p$, find $AB$.
urkarsh jain
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