CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

How many of these are correctly matched ?

Coordinates of a point Name of the octant

1. (1,2,3) P.I

2. (4,2,3) Q.IV

3. (4,2,5) R.VIII

4. (4,2,5) S.V

5. (4,2,5) T.VI

6. (4,2,5) U.II

7. (3,1,6) V.III

8. (2,4,7) W.VIII

___

Open in App
Solution

The sign of the coordinates of a point determine the octant in which the points lies.

The following table shows the signs of the coordinates in eight octants.

octantcoordinatesIIIIIIIVVVIVIIVIIIx+--++--+y++--++--z++++----

Now we can observe the given coordinates and find the correct octant for those coordinates.

Point (1,2,3) (+,+,+) lies in I octant

Point (4,2,3) (+,,+) lies in IV octant

Point (4,2,5) (+,,) lies in VIII octant

Point (4,2,5) (+,+,) lies in V octant

Point (4,2,5) (,+,) lies in VI octant

Point (4,2,5) (,+,+) lies in II octant

Point (3,1,6) (,,+) lies in III octant

Point (2,4,7) (+,,) lies in VIII octant

All of them are matched correct.


flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Coordinate of a Point in Space
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon