what scale would you use to draw something at half its actual size?

select one:
a. 2:1
b. 1:2

Question

what scale would you use to draw something at half its actual size?

select one:
a. 2:1
b. 1:2

Accepted Answer

{ "quality": "clear", "question_count": 1, "skills_matched": [ "step_cot", "multiple_choice_formatter", "explain_then_answer", "tutor", "mastery_adaptive_brevity" ], "needs_drawing": false, "concepts_used": [ "Scale Interpretation" ], "new_concepts": [], "current_concepts": [ "Scale Interpretation", "Floor Plan Scales" ] } ## Define scale ratio notation Using the *Scale Interpretation* knowledge point $$ \text{Scale} = \text{Drawing Size} : \text{Actual Size} $$ ## Apply the target ratio Using the *Scale Interpretation* knowledge point $$ \begin{aligned} &\text{Drawing Size} = \frac{1}{2} \times \text{Actual Size} \ &\frac{\text{Drawing Size}}{\text{Actual Size}} = \frac{1}{2} \ &\text{Scale} = 1 : 2 \end{aligned} $$

a. 2:1

b. 1:2

{ "subject": "Mathematics", "question_type": "Multiple Choice", "knowledge_point": [ "Mathematics", "Geometry", "Scale Interpretation" ] }

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QUESTION IMAGE

Question

Explanation:

Define scale ratio notation

Apply the target ratio

Answer: