In the given figure, is $△DRO\cong △OWD$? If congruent, write the corresponding equal parts.

Are the given triangles congruent? If congruent, write the corresponding parts.

Which corresponding sides do we need to know to prove that the triangles are congruent using the $SAS$ criterion?

Which corresponding sides do we need to know to prove that the triangles are congruent using the $SAS$ criterion?

Teacher has asked the children to construct a triangle with angles $60°, 40°$ and with a side $5 \mathrm{cm}$. Sushma calculated the third angle of the triangle as $80°$ using angle - sum property of triangle. Then Kamal, Sushma and Namratha constructed triangles differently using the following measurements.

Kamal: $60°, 40°$ and $5 \mathrm{cm}$ side (as teacher said)

Sushma: $80°, 40°$ and $5 \mathrm{cm}$ side

Namratha: $60°, 80°$ and $5 \mathrm{cm}$ side.

They cut these triangles and place them one upon the other. Are all of them congruent? Justify.

Is the following pair of triangles congruent? Give reason to support your answer.

In the given pair of triangles, is $△ABC\cong △RPQ$? Justify.

Find the pair of triangles which are congruent to each other.

Find the pair of triangles which are congruent to each other.