Question
A shadow 16 feet long is cast by a fir tree that is 30 feet tall. What is the length of the shadow cast by a nearby water tower that that is 60 feet tall? Write your answer as a whole number or a decimal. Do not round.
Ask by Carrillo Bates. in the United States
Jan 23,2025
Real Tutor Solution
Tutor-Verified Answer
Answer
The shadow of the water tower is 32 feet long.
Solution
To determine the length of the shadow cast by the water tower, we can use the concept of similar triangles. Here's how:
1. **Given:**
- **Fir Tree:**
- Height = 30 feet
- Shadow Length = 16 feet
- **Water Tower:**
- Height = 60 feet
- Shadow Length = \( x \) feet
2. **Set Up the Proportion:**
Since the sun's angle is the same for both the tree and the water tower, the ratio of height to shadow length is constant.
\[
\frac{\text{Height of Tree}}{\text{Shadow of Tree}} = \frac{\text{Height of Water Tower}}{\text{Shadow of Water Tower}}
\]
\[
\frac{30}{16} = \frac{60}{x}
\]
3. **Solve for \( x \):**
\[
30x = 60 \times 16
\]
\[
30x = 960
\]
\[
x = \frac{960}{30}
\]
\[
x = 32
\]
**Answer:** 32
Reviewed and approved by the UpStudy tutoring team
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To find the length of the shadow cast by the water tower, we can use the concept of similar triangles. The height of the fir tree (30 feet) and the length of its shadow (16 feet) establish a ratio. For the water tower, which is 60 feet tall, we set up the proportion: (Height of tree / Length of shadow of tree) = (Height of water tower / Length of shadow of water tower) Thus, (30 / 16) = (60 / x) Cross-multiply to solve for x: 30x = 960 Now, divide both sides by 30: x = 32 So, the length of the shadow cast by the water tower is 32 feet.