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Answer:

R

Step-by-step explanation:

R is on plane ABC, while the rest of the points are co-planar on plane ACED

Answer:

Correct answer is point R

Step-by-step explanation:

Coplanar points:

Coplanar points are the points which lie on same plane.

In this given figure there are five planes which are as follows

BRAE

BRAC

ACUDE

BCUD

BTDE

points C,D and E lie in plane ACUDE:

In plane ACUDE following points lie:

A, C, U, D, E and S

Therefore point R is the point which is not coplanar with points C, D and E