Design and Technology – Graphics | e-Consult

(a) Freehand drawing is a quick, informal way of sketching an idea directly onto paper, using a pencil. It's useful for initial concept generation and exploring different forms. However, it lacks precision and accurate dimensioning. Orthographic projection is a systematic method of representing an object in three dimensions using parallel projection onto three mutually perpendicular planes (front, top, and side views).

The advantage of orthographic projection in this context is that it provides accurate, dimensioned views that can be used by the manufacturing team to create the phone case. It ensures that the proportions and dimensions are correct, minimizing errors during production. It allows for precise measurements to be taken from the drawings.