a
To prove: The segment ED and plane m are perpendicular
a
Answer to Problem 16PSC
Line segment
Explanation of Solution
Given information:
The points A, B, C & D given lie in given plane m
One given line is perpendicular to other given line, i.e.,
Since given,
Points A, B, C & D given lie in given plane m and
Shows that a line,
Thus, only line segment
Hence proved
b
To find: The number of planes in the given figure
b
Answer to Problem 16PSC
There are two planes in the given figure
Explanation of Solution
Given information
The points A, B, C & D given lie in given plane m.
One given line is perpendicular to other given line, i.e.,
Since,
One plane, m is already given in the figure
Second plane will be where line segment lies and which is parallel to given plane, m.
Hence, there are two planes in the figure given
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