The perimeters of two similar triangles, ABC and PQR (ΔABC~ ΔPQR) are respectively 72 cm and 48 cm. If PQ = 20 cm, find AB.
Given: ABC~PQR, PQ =20cm
And perimeter of ABC andPQR are 72cm and 48cm respectively.
As, ABC ~PQR
(corresponding sides are proportional)
⇒AB = 30cm
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