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The perimeters of two similar triangles, ABC and PQR (ΔABC~ ΔPQR) are respectively 72 cm and 48 cm. If PQ = 20 cm, find AB.

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The perimeters of two similar triangles, ABC and PQR (ΔABC~ ΔPQR) are respectively 72 cm and 48 cm. If PQ = 20 cm, find AB.

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Given: ΔABC~ ΔPQR, PQ =20cm

And perimeter of ΔABC and ΔPQR are 72cm and 48cm respectively.

As, ΔABC ~ΔPQR

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