What does 3 cm by 7 cm mean?

Question

Anonymous · Answer

Say: centimetre=u 
 
 3u*7u 
 =3 7 u*u 
 =3 7 u² 
 =21u² 
 =21cm²

bdzski16 · Answer

This means 3x7 cm, which is giving you the area of what's inside

Anonymous · Answer

The phrase '3 cm by 7 cm' describes the dimensions of a rectangle where one side measures 3 centimeters and the adjacent side measures 7 centimeters. Using these dimensions, we calculate the area to be 21 square centimeters (cm²). This area represents the total space within the rectangle. 
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What does 3 cm by 7 cm mean?

Answer (3)

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