🔍 Key Concepts

• Right-side orthographic view – imagine looking straight at the right end of the object so only that face is your ‘front’. • Hidden lines (dashed) show edges or surfaces you cannot see from that viewing direction, including the internal cylindrical hole and the back edges of the cutout. • How a vertical blind hole (a cylinder that does not go all the way through) appears in a side view: usually as hidden straight lines, not circles.

💭 Think About

• First, sketch the visible outline of the right-side view only: what does the stepped cutout look like when you look directly at the right end? • Next, ask: which important edges are behind that right face from this viewpoint: the back of the slot? the cylindrical hole? any bottom surfaces? • For each such edge, decide whether it would project as a vertical or horizontal line in the right-side view, and whether it is visible or must be shown as hidden (dashed).

✅ Before You Answer

• Make sure every hidden line you count represents a real edge or boundary that is blocked from view in the right-side projection (no ‘extra’ lines). • Check both features: the U-shaped cutout on the right and the blind cylindrical hole toward the left; decide how many hidden edges each contributes to the right-side view. • Verify you are not double‑counting coincident edges: if a hidden edge falls exactly behind a visible outline, it is not drawn separately in orthographic views.