Q52 of 186 Page 263

Which of the following is a false statement?

The ratio of the areas of two similar triangles is equal to the ratio of squares of their corresponding sides.

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50

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

 51

Which of the following is a true statement?

 53

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


 54

Match the following columns:























Column I



Column II



A. A man goes 10 m due east and then 20 m due north. His distance from the starting point is ……..m.



P. 25√3



B. In an equilateral triangle with each side 10 cm, the altitude is ……cm.



Q. 5√3



C. The area of an equilateral triangle having each side 10 cm is …….cm2.



R. 10√5



D. The length of diagonal of a rectangle having length 8 m and breadth 6 m is ……..m.



S. 10