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Mathematics 11 Online
OpenStudy (plzhelpwilldowhatican):

What is the scale factor for the set of similar figures? Type in your answer as a decimal.

OpenStudy (plzhelpwilldowhatican):

OpenStudy (plzhelpwilldowhatican):

Any help?

OpenStudy (ask_if_im_a_ghost):

6/15 = 2/5 = .4 So the scale factor is .4

OpenStudy (plzhelpwilldowhatican):

Thanks

Directrix (directrix):

@Ghost That is not correct. The arrow indicates that the scale factor should be formed from large to small.

Directrix (directrix):

15/6 @PlzHelpWillDoWhatICan

Directrix (directrix):

What is the greatest common factor of 15 and 6?

OpenStudy (plzhelpwilldowhatican):

3?

Directrix (directrix):

I don't know if you are to enter that in fractional form. Look at the directions.

OpenStudy (plzhelpwilldowhatican):

It says type it as a decimal.

Directrix (directrix):

Yes. So, 15/6 becomes 5/2.

Directrix (directrix):

5/2 = 2.5

OpenStudy (plzhelpwilldowhatican):

I answered that then checked it and it turns out it was 0.4

OpenStudy (plzhelpwilldowhatican):

But thanks for the good explanation :D

OpenStudy (ask_if_im_a_ghost):

To find out the scale factor, you always take the \[\frac{ New Shape }{ Old Shape }\]

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