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.

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? 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? PF=1.28 cm, FR=2.56 cm, PE=1.8 cm and EQ=3.6 cm.

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………………

Find the perimeter of each of the following shapes: An equilateral triangle of side 9 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: A triangle of sides 3cm, 4cm, and 5cm.

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.

In /_\ABC , D and E are points on AB and AC respectively. If AB=14 cm, AD=3.5 cm, AE=2.5 cm and AC=10 cm, show that DE|\|BC .

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