Eamcet Mathematics - Co - ordinate Geometry 3D Geometry Free Online Tests | Mock Tests | Preparation | Practice Tests

Study Room

Goto

Eamcet Mathematics
Co - ordinate Geometry 3D Geometry

Take Exam

01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91

18 / 91

The plane x/a + y/b + z/c = 3 meets the co-ordinate axes in A,B,C. The centroid of the triangle ABC is

A. (a/3, b/3, c/3)

B. (3/a, 3/b, 3/c)

C. (1/a, 1/b, 1/c)

D. (a, b, c)

E. None of the above

View Answer

Correct choice: D

Explanation:

Obviously, co-ordinates of A, B, C are respectively (3a, 0 , 0), (0, 3b, 0) and (0, 0, 3c)
Hence centroid is (a,b,c)

18 / 91

Study Room

Lessons

Eamcet Mathematics Co - ordinate Geometry 3D Geometry

Eamcet Mathematics
Co - ordinate Geometry 3D Geometry