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Precautions and improvements (for paper 6 physics) !

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Hesham Mhd:
but if we use a protractor, will that be correct too? i mean it should be 90* for it to be hor./vertical right?

Vin:

--- Quote from: Hesham Mhd on May 07, 2010, 11:47:42 am ---but if we use a protractor, will that be correct too? i mean it should be 90* for it to be hor./vertical right?

--- End quote ---

how would u do that while the ruler's in horizontal..?

its pretty much easy for nything thts vertical..

Hesham Mhd:
i think it depends on the way yu place the protractor, but nvm, using a set square is more guaranteed anyway

Vin:

no its ok i wanna kno .. how would u place a protractor while the ruler's in horizontal?

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