Question

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draw and label the image of △abc under a reflection across line ℓ.

Explanation:

Step1: Reflect point A over line ℓ

Draw perpendicular from A to ℓ, extend same length to get A'.

Step2: Reflect point B over line ℓ

Draw perpendicular from B to ℓ, extend same length to get B'.

Step3: Reflect point C over line ℓ

Draw perpendicular from C to ℓ, extend same length to get C'.

Step4: Connect A', B', C'

Form △A'B'C' (image of △ABC).

Answer:

The image is △A'B'C' where each vertex is the reflection of A, B, C over line ℓ. (Note: A precise drawing requires geometric tools to ensure perpendicularity and equal distances.)