30) When a pyramid is cut by a plane parallel to the base and the top portion removed, this remaining portion is know as?

31) Which solid object having eight equilateral triangular faces?

32) When a sectional view shows the true shape on the outer part of drawing is known as?

33) When a view that makes theatrical cut removing one quarter of an object is known as?

34) Which type of section is to show the shape rotated towards plane of projection of objects such as spokes and ribs?