Mathematics
Grade-8
Easy

Question

Determine the scale factor of the following images:

  1. 4:1
  2. 8:1
  3. 12:1
  4. 16:1

hintHint:

Scale factor : Scale Factor is defined as the ratio of the size of the new image to the size of the old image

The correct answer is: 4:1


    Scale factor : Scale Factor is defined as the ratio of the size of the new image to the size of the old image,  Or
    Scale factor is the ratio of a length in the image to the corresponding length in the preimage.
    So, 20 over 5 equals 16 over 4 equals 12 over 3 equals 4 colon 1

    Scale factor : Scale Factor is defined as the ratio of the size of the new image to the size of the old image
    • If the scale factor is greater than 1, the image is an enlargement. It expands.
    • If the scale factor is between 0 and 1, the image is a reduction. It contracts.
    • If the scale factor is 1, the figure and the image are the exact same size (congruent).

    Related Questions to study

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    In dilation, if the scale factor is 1, then the original image and the dilated image are

    A dilation that creates a larger image is called an enlargement.
    dilation that creates a smaller image is called a reduction.
    A description of a dilation includes the scale factor (or ratio) and the center of the dilation.
    The center of dilation is a fixed point in the plane.
    Scale factor : Scale Factor is defined as the ratio of the size of the new image to the size of the old image
    • If the scale factor is greater than 1, the image is an enlargement. It expands.
    • If the scale factor is between 0 and 1, the image is a reduction. It contracts.
    • If the scale factor is 1, the figure and the image are the exact same size (congruent).

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    • If the scale factor is 1, the figure and the image are the exact same size (congruent).

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    dilation that creates a smaller image is called a reduction.
    A description of a dilation includes the scale factor (or ratio) and the center of the dilation.
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    Scale factor : Scale Factor is defined as the ratio of the size of the new image to the size of the old image
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    • If the scale factor is between 0 and 1, the image is a reduction. It contracts.
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    • If the scale factor is between 0 and 1, the image is a reduction. It contracts.
    • If the scale factor is 1, the figure and the image are the exact same size (congruent).

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