\image html block3.png
\n <b>Example:</b>
-\image html image185.jpg "Quadrangle face built by blocks"
+\image html image185.png "Quadrangle face built by blocks"
<br><br>
\n <b>Example:</b>
-\image html image180.jpg
+\image html image180.png
<center>Hexahedral Solid built on the base of six Faces</center>
-\image html image181.jpg
+\image html image181.png
<center>Hexahedral Solid built on the base of two Faces</center>