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प्रश्न
State which pair of triangles in the given figure are similar. Write the similarity criterion used by you for answering the question, and also write the pairs of similar triangles in the symbolic form:
उत्तर
In ΔABC and ΔPQR
`("AB")/("QR") = 2/4 = 1/2`
`("BC")/("RP") = 2.5/5 = 1/2`
`("CA")/("PQ") = 3/6 = 1/2`
`("AB")/("QR") = ("BC")/("RP") = ("CA")/("PQ")`
∴ ΔABC ~ ΔQRP ...[By SSS similarity criterion]
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