E and F are points on the sides PQ and PR respectively of `DeltaPQR`. For each of the following state whether `EF||QR` or not?
PE=4cm,QE=4.5cm,
PF=8 cm and RF=9cm.

E and F are points on the sides PQ and PR respectively of DeltaPQR . For each of the following state whether EF||QR or not? PE=3.9 cm ,EQ=3cm, PF=3.6 cm and FR=2.4 cm.

E and F are points on the sides PQ and PR respectively of DeltaPQR . For each of the following state whether EF||QR or not? PF=1.28 cm, FR=2.56 cm, PE=1.8 cm and EQ=3.6 cm.

In triangle /_\PQR , E and F are points on the sides PQ and PR respectively. For each of the following state whether EF|\|QR or not. i) PE=3.9 cm, EQ=3 cm, PF=3.6 cm and FR=2.4 cm.

In the adjacent figures, S and T are points on the sides PQ and PR respectively of triangle PQR such that PT = 2cm, TR = 4cm and ST||QR . Find the ratio of the areas of triangle PST and triangle PQR .

Find the perimeter of each of the following shapes: An equilateral triangle of side 9 cm.

P and Q are points on sides AB and AC respectively of triangle ABC . If AP = 4cm, PB= 8cm, AQ = 3cm and QC =6cm, show that BC = 3PQ.

Find the perimeter of each of the following shapes: A triangle of sides 3cm, 4cm, and 5cm.

In the below given figure P and Q are points on the sides AB and AC respectively of triangle ABC such that AQ = 3cm, QC= 5cm and PQ ||BC . Find the ratio of areas traingle APQ and triangle ABC .

In DeltaABC , E and F are the points on the sides AB and AC respectively. IF AE=2 cm, EB=2.5 cm, AF=4 cm, and FC=5 cm, then………………

Draw the following triangles and construct circumcircles for them: In DeltaPQR , PQ = 5 cm , QR = 6 cm and RP= 8.2cm.