Q51 of 186 Page 263

Which of the following is a true statement?

If two triangles ABC and PQR are similar,

That is their corresponding sides are proportional.

In an isosceles ΔABC, if AC = BC and AB² = 2AC² then ∠C = ?

In ΔABC, if AB = 16 cm, BC = 12 cm and AC = 20 cm, then ΔABC is

Which of the following is a false statement?

Match the following columns:

Column I	Column II
A. In a given ΔABC, DE \|\| BC and . If AC = 5.6 cm then AE = ………. cm.	P. 6
B. If ΔABC ~ ΔDEF such that 2AB = 3DE and BC = 6 cm then EF = ……….. cm.	Q. 4
C. If ΔABC ~ ΔPQR such that ar(ΔABC) : ar(ΔPQR) = 9 :16 and BC = 4.5 cm then QR = cm.	R. 3
D. In the given figure, AB \|\| CD and OA = (2x + 4) cm, OB = (9x — 21) cm, OC = (2x —1) cm and OD = 3 cm. Then x = ?	S. 2.1