## Question

### Solution

Correct option is Let D be the mid-point of BC. Then,  Hence, required length = units.

#### SIMILAR QUESTIONS

Q1

Let ABCD be a parallelogram whose diagonals intersect at P and let O be the origin, then equals

Q2

If A, B, C, D be any four points and E and F be the middle points of AC and BD respectively, then is equal to

Q3

Given that the vectors are non-collinear, the values of x and yfor which the vector equality holds true if are

Q4

Let be three non-zero vectors, no two of which are collinear. If the vector is collinear with is collinear with is equal to

Q5 Q6

If the position vector of the three points are , then the three points are

Q7

Three points with position vectors will be collinear, if there exist scalars xyz such that

Q8

The position vectors of the vertices ABC of a âˆ†ABC are respectively. The length of the bisector AD of the angle BAC where D is on the line segment BC, is

Q9

Consider points ABC and D with position vectors  respectively. Then, ABCD is a

Q10

The sides of a parallelogram are then the unit vector parallel to one of the diagonals is