Math, asked by maheknankani1983, 6 months ago

ΔABC ~ ΔPQR such that area (ΔABC) = 4area (ΔPQR). If BC = 12 cm, then QR =

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Answered by tupritesh

0

Answer:

48 mulitiply

Step-by-step explanation:

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Answered by uttamrikibe3

2

Answer:

We know that the ratio of the areas of two similar triangles is equal to the ratio of the squares of the corresponding sides.

∴ar(ΔPQR)ar(ΔABC)=QR2BC2⇒12164=(15.4)2BC2

⇒118=15.4BC

⇒BC=118×15.4=11.2cm

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