math

2 rectangles are similar. Which is a correct proprtion for corresponding sides?

For one rectangle, the length is 12 and the width is 4. The other rectangle has 8 as the width and x as the length. I think it's 4/12=x/8. Is this right?

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  1. "Width" is the smaller of the two dimensions of the rectangle. Since the width has doubled from 4 to 8 for the "other" rectangle, the length must double also, to 24.

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  2. So the proportion is 12/4=x/8?

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  3. Is the proportion 12/4=x/8?

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  4. No. It is 2:1

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  5. I forgot to post the answer choices

    a 12/8=x/4
    b 12/4=x/8
    c 12/4=x/20
    d 4/12=x/8

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  6. b. x (the length of the "other" triangle) = (8/4) x 12 = 24

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