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Mathematics-Online problems:

Interactive Problem 125: Distance Point-Line, Construction of Planes, Angle, Volume

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Let $ g$ be the line given by

$\displaystyle \vec{x}= \left( \begin{array}{c} 2 \\ -2 \\ -1 \end{array} \right) + t \left( \begin{array}{c} -1 \\ 0 \\ 1 \end{array} \right) $

and let $ P$ be the point $ (2,-1,1)$ .
a)
Calculate the distance between $ P$ and $ g$ .
b)
Determine the defining equation of the plane $ E$ spanned by the points $ A=(0,1,1)$ , $ B=(1,2,2)$ and $ C=(1,0,1)$ .
c)
Let $ F$ be the plane spanned by $ g$ and $ P$ . At which angle do $ E$ and $ F$ intersect each other?
d)
Calculate the volume of the parallelepiped spanned by $ A$ , $ B$ , $ C$ and $ D=(-3,0,1)$ .

Solution:

a)
Squared distance: .
b)
$ E$ : $ x+$ $ y+$ $ z=$ .
c)
Angel of intersection: $ \pi$ /.
d)
Volume: .


   

(Authors: Kimmerle/Wipper/Abele)

see also:

  automatically generated: 8/11/2017