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strenesmee:
One side of a cube is 8 cm. A cube with a side 3 cm is cut from this cube. Calculate the new surface area.
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Vocaloid:
|dw:1526645167647:dw|
Vocaloid:
notice how we have three sides of the little cube that are removed from the big cube|dw:1526645250928:dw|
Vocaloid:
but notice how we have created three identical new sides |dw:1526645369150:dw|
Vocaloid:
@strenesmee when you get back to this, would you mind looking over these diagrams? if we remove three sides and add three sides then what does that tell you about the original surface area?
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