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Given that the first three vertices, V1, V2, and V3, of a pentagon have been used to calculate plane parameters A=15, B-21, C-9, D=0, determine from the final two vertices V4-(2, -1, -1) and V5-(1, -2, 2) whether the pentagon is planar or non-planar. A pentagon is planar if all the above 5 vertices, V1, V2, V3, V4, and V5, are on the same plane. Otherwise it is non-planar. Given that the first three vertices, V1, V2, and V3, of a pentagon have been used to calculate plane parameters A=15, B-21, C-9, D=0, determine from the final two vertices V4-(2, -1, -1) and V5-(1, -2, 2) whether the pentagon is planar or non-planar. A pentagon is planar if all the above 5 vertices, V1, V2, V3, V4, and V5, are on the same plane. Otherwise it is non-planar