If the projections of the line segment `bar(PQ)` on the axes are 3, 4, 12 then the length of `bar(PQ)` is

If the projections of a line segment on the axes are 3, -4, 12 then the length of the segment and d.c.'s of the line are

If the projections of bar(PQ) on the axes are 2, -2, 1 then the length PQ =

If the projection of a line segment PQ on the coordinate axes are 3,4,5, then the length of the line segment is

The projection of a line segment on the axes are 9, 12 and 8. Then the length of the line segment is

If the projection a of a line segment PQ on the coordinate as are 2,3,6, then its direction cosines are

If the projection of a line segment on x, y and z axes are respectively 3,4 and 5 , then the length of the line segment is

The projections of a line segment on the axes are 9,12 and 8 .If the length of the line segment is k then the value of k-10

The projections of a line segment on the coordinate axes are 12,4,3 respectively. The length and direction cosines of the line segment are