Count the number of triangles in the figure given below:

 

 In $△PQR,$ the side opposite to vertex $Q$ is _____.

 In $△XYZ,$ the angle opposite to side $XZ$ is $\angle$_____.

 In $△ABC,$ the vertex opposite to side $BC$ is _____.

. If $\angle A=60°, \angle B=50°$ and $\angle C=70°$, then $∆ABC$ is _____ -angled triangle.

If  $AB=10 cm, BC=CA=10 cm$ then $∆ABC$ is _____ triangle.

If $\angle X=120°, \angle Y=40°, \angle Z=20°$, then $△XYZ$ is _____ triangle.

If $MN=5 cm, NO= 6 cm$ and $OM=7 cm$, then $△MNO$ is _____ triangle.

In an equilateral triangle, the medians and altitudes _____.