Q1 of 186 Page 211

In each of the given pairs of triangles, find which pair of triangles are similar. State the similarity criterion and write the similarity relation in symbolic form.

In triangles DEF & PQR,




By SSS criteria, we can write


∆DEF ∼ ∆PQR


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1

In each of the given pairs of triangles, find which pair of triangles are similar. State the similarity criterion and write the similarity relation in symbolic form.

 1

In each of the given pairs of triangles, find which pair of triangles are similar. State the similarity criterion and write the similarity relation in symbolic form.

 1

In each of the given pairs of triangles, find which pair of triangles are similar. State the similarity criterion and write the similarity relation in symbolic form.

 2

In the given figure, ΔODC ~ ΔOBA, ∠BOC = 115° and ∠CDO = 70°.


Find (i) ∠DOC (ii) ∠DCO (iii) ∠OAB (iv) ∠OBA.