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Question
Cara and Beejal would like to reduce a poster into small study card. The original poster has a length of 36 inches and a width of 24 inches. Cara and Beejal will reduce the poster using a scale factor of 16
.(3 points)
Determine the dimensions and area of the study card.

7th Grade Math Formula Sheet

Length of the new study card =
inches

Width of the new study card =
inches

Area of the new study card =
square inches

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1 answer

To reduce the dimensions of the poster using a scale factor of \(\frac{1}{16}\), we can find the dimensions of the study card by multiplying the original dimensions by the scale factor.

Original Dimensions:

  • Length of the poster = 36 inches
  • Width of the poster = 24 inches

Using the Scale Factor of \(\frac{1}{16}\):

  1. Length of the new study card: \[ \text{New Length} = 36 \text{ inches} \times \frac{1}{16} = \frac{36}{16} = 2.25 \text{ inches} \]

  2. Width of the new study card: \[ \text{New Width} = 24 \text{ inches} \times \frac{1}{16} = \frac{24}{16} = 1.5 \text{ inches} \]

Area of the New Study Card:

To find the area, we multiply the length by the width: \[ \text{Area} = \text{New Length} \times \text{New Width} = 2.25 \text{ inches} \times 1.5 \text{ inches} = 3.375 \text{ square inches} \]

Summary:

  • Length of the new study card = 2.25 inches
  • Width of the new study card = 1.5 inches
  • Area of the new study card = 3.375 square inches