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b. [tex]<b><font color="red">Triangle</font></b>[/tex]
REASON :
In fig. 1 there is front view of a triangle pyramid.
It can be seen that it has 3 triangular faces and one triangle as its base.
In fig. 2 there is top view of the triangular pyramid where it can be seen that a triangular portion is obtained when it is sliced perpendicularly to the base.
[tex]<marquee>[/tex]
HOPE IT IS USEFUL
