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In the following figure, PQ = PS and ∠1 = ∠2. Is ∆PQR ≅ ∆PSR? Give reasons. Is QR = SR? Give reasons.

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Question

In the following figure, PQ = PS and ∠1 = ∠2.

  1. Is ∆PQR ≅ ∆PSR? Give reasons.
  2. Is QR = SR? Give reasons.

Give Reasons
Sum
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Solution

i. In ∆PQR and ∆PSR,

PQ = PS  ...(Given)

∠1 = ∠2  ...(Given)

PR = PR  ...(Common)

∴ ∆PQR ≅ ∆PSR  ...(SAS criterion)

ii. Yes, QR = SR  ...(By C.P.C.T.)

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Chapter 6: Triangles - Exercise [Page 183]

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NCERT Exemplar Mathematics Exemplar Class 7
Chapter 6 Triangles
Exercise | Q 150. | Page 183

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