iran-konkur 2015 Q132

iran-konkur · Other · konkur-riazi_1394 Not Maths
132. Point $A$ is outside the plane of triangle $BCD$. Determine the number of planes passing through $A$ such that points $D$, $C$, and $B$ are each at equal distance from it. How many such planes are there?
(4) $4$(3) $3$(2) $2$(1) $1$
\textbf{132.} Point $A$ is outside the plane of triangle $BCD$. Determine the number of planes passing through $A$ such that points $D$, $C$, and $B$ are each at equal distance from it. How many such planes are there?

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(4) $4$ & (3) $3$ & (2) $2$ & (1) $1$
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