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Mathematics 14 Online
OpenStudy (anonymous):

a square picture measuring 8cm on each side is pasted on a square cartolina measuring 10cm on each side. how wide is the space not covered by the picture??

OpenStudy (anonymous):

what is the formula?/

hartnn (hartnn):

same thing! subtract areas!

hartnn (hartnn):

u know area of square?

OpenStudy (anonymous):

area of square= 4s

hartnn (hartnn):

nopes area of square is side*side

OpenStudy (anonymous):

sorry

hartnn (hartnn):

so whats 10^2- 8^2 ?

OpenStudy (anonymous):

is the answer 36 square centimeters??

hartnn (hartnn):

yup :)

OpenStudy (anonymous):

wide means area? or length cabby?

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