To prove $△AMP\cong △AMQ$, supply the missing reasons in the following proof.

Steps	Reasons
(I) $PM=QM$	(i)
(ii) $\angle PMA\cong \angle QMA$	(ii)
(iii) $AM=AM$	(iii)
(iv) $△AMP\cong △AMQ$	(iv)

In $△ABC$, $\angle A=30°$, $\angle B=40°$ and $\angle C=110°$. In $△PQR$, $\angle P=30°$, $\angle Q=40°$ and $\angle R=110°$.

A student says that $△ABC\cong △PQR$ by $AAA$ congruence criterion. Is he correct? Justify.

In the given figure, the two triangles are congruent and the corresponding parts are marked. Find the triangle which is congruent to $△RAT$ and express it in notation.

In the given figure, the two triangles are congruent and the corresponding parts are marked. Find the triangle which is congruent to $△ABC$ and express it in notation.

Complete the congruence statement.

$∆\mathrm{QRS}\cong$?

In a squared sheet, draw two triangles of equal areas such that the triangles are congruent

What can you say about their perimeters?

In a squared sheet, draw two triangles of equal areas such that the triangles are not congruent

What can you say about their perimeters?

If $\mathrm{\Delta ABC}$ and $\mathrm{\Delta PQR}$ are to be congruent, name one additional pair of corresponding parts. What criterion did you use?

Explain, why $\mathrm{\Delta ABC} \cong \mathrm{\Delta FED}$.