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Which of the following is/are correct ab...

Which of the following is/are correct about a tetrahedron?

A

(a)Centroid of a tetrahedron lies on lines joining any vertex to the center of opposite faces.

B

(b)Centroid of the a tetrahedron lies on lines joining the mid point of the opposite faces.

C

(c)Distance of centroid from all the vertices are equal.

D

(d)None of these

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The correct Answer is:
(a, b)
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ARIHANT MATHS-THREE DIMENSIONAL COORDINATE SYSTEM-Exercise (More Than One Correct Option Type Questions)
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  2. Which of the following statements is/are correct?

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  3. Which of the following is/are correct about a tetrahedron?

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  4. A variable plane is at a distance, k from the origin and meets the coo...

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  5. Find the equation of the plane containing the line : (x+1)/1=(y-2)/2=(...

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  6. The line (x-2)/(3)=(y+1)/(2)=(z-1)/(-1) intersects the curve x^2+y^2=r...

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  7. A vector equally inclined to the vectors hat(i)-hat(j)+hat(k) and hat(...

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  8. Find the equations of the line through the point ( 1 , -2, -3) and par...

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  9. A plane passes through a fixed point (a, b, c) and direction ratios of...

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  10. Let A be vector parallel to line of intersection of planes P1 and P2. ...

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  11. Find the angle between the planes 2x+y+z-1=0 and 3x+y+2z-2=0,

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  12. Find the direction ratios of this plane 2x-3y+4z+2=0

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  13. A line segment has length 63 and direction ratios are 3,-2 and 6. The ...

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  16. The lines x=y=z meets the plane x+y+z=1 at the point P and the sphere ...

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  17. Evaluate int 4x^5 dx

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  18. Consider the planes 2x+y+z+4=0, and y-z+4=0 Find the angle between the...

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