You can't directly compare inches and feet because they are different units of measurement. To compare them, you need to convert one to the other.

Here's how to solve this:

1. Convert feet to inches:

* There are 12 inches in 1 foot.

* So, 1.75 feet is equal to 1.75 * 12 = 21 inches.

2. Compare the heights:

* Now you have 3.8 inches and 21 inches.

* 21 inches is taller than 3.8 inches.

Therefore, 1.75 feet (21 inches) is taller than 3.8 inches.