Taken parallel to the base, which of the following solids has a cross-section that is not a rectangle?

(i) rectangular pyramid
(ii) square pyramid
(iii) triangular pyramid
(iv) rectangular prism

Solution:

From the above diagrams, we observe that taken parallel to the base, the solid that does not have a rectangular cross-section is the triangular pyramid, option (iii).

Taken parallel to the base, which of the following solids has a cross-section that is not a rectangle?
(i) rectangular pyramid, (ii) square pyramid, (iii) triangular pyramid, (iv) rectangular prism

Summary:

 Taken parallel to the base, the triangular pyramid has a cross-section that is not a rectangle