Solid Geometry & Descriptive Geometry is one of 9 topics in the Grade 10 Engineering Graphics and Design CAPS syllabus, covered across 3 lessons on Study Vault. Below are real practice questions from this topic with full worked answers.
Sample practice questions
Easy
1. What shape are the two parallel, identical ends of a right-regular prism?
A regular polygon
Always a circle
Always a triangle only
An irregular, non-symmetrical shape
Answer: A regular polygon — A right-regular prism has two parallel, identical regular polygon ends (3, 4, 5, 6 or 8 sides) connected by rectangular side faces.
Easy
2. Where do the triangular side faces of a right-regular pyramid meet?
At a single apex point directly above the centre of the base
At two separate apex points
They do not meet; the pyramid has no apex
At the midpoint of one base edge only
Answer: At a single apex point directly above the centre of the base — A right-regular pyramid has a single regular polygon base with triangular side faces meeting at a single apex point directly above the centre of the base.
Medium
3. Name the imaginary line running through the centre of a solid, from base to apex for a pyramid or end to end for a prism.
Answer: the axis — The axis is the imaginary line running through the centre of the solid, and Grade 10 covers solids whose axis is perpendicular, parallel or inclined to one principal projection plane only.
