In `trianglePQR`, M and N are points on PQ and PR, respectively, such that `bar(MN) || bar(QR)`, If PM =`x`, PR `=x+9, PQ=x+13` and `PN=x-2`, then find `x`.

In trianglePQR , M and N are two points on PQ and PR such MN || QR and PM = 1/2 QM. If QR = 4.5cm. Then MN =

M and N are points on the sides PQ and PR respectively of anglePQR . If PQ = 1.28 PR = 2.56, PM = 0.16 and PN = 0.32, prove that MN || QR.

In DeltaPQR , A and B are two such points on PQ and PR respectively that AB||QR . If PA=1.7cm , PQ=6.8cm and PR=9cm , then find the value of PB .

In the given figure L, M and N are mid point of the sides PQ, PR and QR respectively of DeltaPQR . If PQ = 4.4 cm, QR = 5.6 cm and PR = 4.8 cm then find the perimeter of DeltaLMN .

In the figure, M and N are the midpoints of sides PQ and PR respectively . If MN =6 cm then find QR. State your reason .

In A PQR, if PQ=PQ and L,M and N are the mid-points of the sides PQ,PR and RP respectively.Prove that LN=MN

Let square PQRS be a quadrilateral. If M and N are the mid-points of the sides PQ and RS respectively, then bar(PS)+bar(QR) =