The figure given above contains the following 2-Dimensional shapes.
Only triangles
Only rectangles
Both rectangle and triangle
None of these
In the figure, ABC, BCD, CDE and ACE are triangles and ABDE is a rectangle. Hence, it contains both rectangle and triangles.
A pyramid is a solid figure,whose base is
(a) only a triangle
(b) only a square
(c) only a rectangle
(d) any polygon