brookeobrien111
brookeobrien111
20-11-2014
Mathematics
contestada
what does 3cm by 7cm mean
Respuesta :
bdzski16
bdzski16
20-11-2014
This means 3x7 cm, which is giving you the area of what's inside
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Аноним
Аноним
20-11-2014
Say: centimetre=u
---------------------
3u*7u
=3*7*u*u
=3*7*u²
=21u²
=21cm²
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