Question

area of triangle abc is 81 cm square and triangle pqr is 36 cm square. if triangle abc is similar to triangle pqr then ab = _ pq

Answer 1

Since the ratio of the corresponding sides of similar triangles is same as the ratio of their perimeters.

∴ΔΑΒΟ ~ ΔP QR

⇒ AB BC AC =. 36

PR. QR. PR. 24

⇒ AB = 24

PQ 36

⇒ AB = 36

10 24

⇒ AB = 36×10 cm = 15cm.

24

Answer- 15cm

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