Mathematics
E and F are points on the sides PQ and PR respectively of a △PQR. For each of the following cases, state whether EF || QR.
(i) PE = 3.9 cm, EQ = 3 cm, PF = 8cm and RF = 9 cm.
(ii) PQ = 1.28 cm, PR = 2.56 cm, PE = 0.18 cm and PF = 0.36 cm.
Related Questions
A and B are respectively the points on the sides PQ and PR of a triangle PQR such that PQ = 12.5 cm, PA = 5cm, BR = 6 cm and PB = 4 cm. Is AB || QR ? Give reasons for your answer.
In the figure (iii) given below, if XY ∥ QR, PX = 1 cm, QX = 3 cm, YR = 4.5 cm and QR = 9 cm, find PY and XY.
In the figure (i) given below, CD || LA and DE || AC. Find the length of CL if BE = 4 cm and EC = 2 cm.
In the adjoining figure, DE ∥ BC.
(i) If AD = x, DB = x - 2, AE = x + 2 and EC = x - 1, find the value of x.
(ii) If DB = x - 3, AB = 2x, EC = x - 2 and AC = 2x + 3, find the value of x.
