Construct a triangle $\mathrm{ABC}$ with given conditions.

An isosceles obtuse triangle with equal sides $5 \mathrm{cm}$.

Construct a triangle $\mathrm{PQR}$ with given conditions.

$\angle \mathrm{P}=60°, \angle \mathrm{R}=35°$ and $\mathrm{PR}=7.8 \mathrm{cm}$

Construct a triangle $\mathrm{PQR}$ with given conditions.

$\angle \mathrm{P}=115°, \angle \mathrm{Q}=40°$ and $\mathrm{PQ}=6 \mathrm{cm}$.

Construct a triangle $\mathrm{PQR}$ with given conditions.

$\angle \mathrm{Q}=90°, \angle \mathrm{R}=42°$ and $\mathrm{QR}=5.5 \mathrm{cm}$

In the given figure, $\mathrm{AD}=\mathrm{CD}$ and $\mathrm{AB}=\mathrm{CB}$. Identify the other three pairs that are equal.