Question

The area of two similar triangle ABC and PQR are 25cm² and 49cm² respectively and QR=9.8 cm,find BC=..............​

Answer 1

here is the answer hope it will help you

Answer 2

Answer:

Step-by-step explanation:

By the theorem i.e ratio of area of 2 similar triangles is equal to the ratio of the squares of there coresponding sides

ar(ABC). ( BC)^2

-------------- = -----

are(PQR) (QR)^2

25/49 = (BC)^2/(9.8)^2

(BC)^2 = 25/49 x 96.04

(BC) = √49

BC. = 7