Scale drawings
Objective. Produce and interpret a scale drawing of a room or plan.
- 1. Learn
- 2. Worked example
- 3. Practice
- 4. Feedback
- 5. Continue
Learn: the key idea
Every length shrinks by the same factor. Angles stay exactly the same, which is why a plan still looks right.
Worked example
A 4 m wall drawn at 1 cm to 50 cm. Drawing length?
- 14 m = 400 cm.
- 2400 ÷ 50 = 8.
Answer: 8 cm
Concept mastery
Based on your past attempts at this lesson — the question types to practise again come first.
Complete a practice set to see your concept breakdown here.
Practice
Practice happens on its own screen, one question at a time. Answers stay hidden until you submit yours, and you can stop and pick up at the same question later.
Start practisingCommon mistake. Scaling some lengths but leaving others at full size.
Your progress
Tick each step as you finish it. Your exact reading position is saved automatically, so Continue drops you back on the same line.
0 of 5 steps complete
Your place saves automatically as you read.