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Question
Henry would like to enlarge a photo. The original photo has a length of 5 inches and a width of 8 inches. Henry will enlarge the photo using a scale factor of 3.(3 points)
Determine the dimensions and area of the study card.

7th Grade Math Formula Sheet

Length of the enlarged photo =
inches

Width of the enlarged photo =
inches

Area of the enlarged photo =
square inches

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Answer 1

To find the dimensions and area of the enlarged photo, we can use the given scale factor.

1. **Calculate the dimensions of the enlarged photo:**
- Length:
\[
\text{Length of enlarged photo} = \text{Original length} \times \text{Scale factor} = 5 \text{ inches} \times 3 = 15 \text{ inches}
\]

- Width:
\[
\text{Width of enlarged photo} = \text{Original width} \times \text{Scale factor} = 8 \text{ inches} \times 3 = 24 \text{ inches}
\]

2. **Calculate the area of the enlarged photo:**
- Area:
\[
\text{Area of enlarged photo} = \text{Length} \times \text{Width} = 15 \text{ inches} \times 24 \text{ inches} = 360 \text{ square inches}
\]

**Final Results:**
- Length of the enlarged photo = **15 inches**
- Width of the enlarged photo = **24 inches**
- Area of the enlarged photo = **360 square inches**