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Mathematics 9 Online
OpenStudy (gabbyalicorn):

The prism has a volume of 70 mm3. Find the volume of a scaled image with a scale factor of 3.

OpenStudy (gabbyalicorn):

posting pic give me a sec

OpenStudy (gabbyalicorn):

OpenStudy (michele_laino):

ok!

OpenStudy (michele_laino):

is the scaled image larger than the original image?

OpenStudy (gabbyalicorn):

The shape is the same size...

OpenStudy (gabbyalicorn):

Sorry, I kind of do not understand your question. Are you trying to say is the shape bigger on my screen?

OpenStudy (gabbyalicorn):

Than in the screenshot

OpenStudy (michele_laino):

no, I think that the new dimensions, of the prism after scaling, are: 5*3=... 7*3=... 2*3=...

OpenStudy (gabbyalicorn):

5 x 3 = 15 7 x 3 = 21 2 x 3 = 6

OpenStudy (michele_laino):

ok! so the new volume is: V=15*21*6=...

OpenStudy (gabbyalicorn):

1890

OpenStudy (michele_laino):

that's right! V=1890 mm^3

OpenStudy (gabbyalicorn):

Oh, goodie!!! Thank you!

OpenStudy (michele_laino):

:)

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