Question

The width of a human hair is 80 mu m. If a human is about 1.8 m tall, how many human hair thicknesses is that?

Answer 1

To find out how many human hair thicknesses equal the height of a 1.8 m tall person, first convert the height to micrometers (1.8 m = 1,800,000 µm) and then divide by the width of a hair (80 µm), resulting in 22,500 hair thicknesses.

Step-by-step explanation:

The width of a human hair is 80 micrometers (µm), and the height of a person is given as 1.8 meters (m).

To calculate how many hair thicknesses equal the height of a person, we need to convert the person's height into micrometers. Since 1 meter is equal to 1,000,000 micrometers (1 m = 1,000,000 µm), we multiply the height of the person by this conversion factor.

1.8 m × 1,000,000 µm/m = 1,800,000 µm.

Now, we simply divide the person's height in micrometers by the width of a human hair.

1,800,000 µm ÷ 80 µm = 22,500.

Therefore, the height of a 1.8 m tall human is 22,500 hair thicknesses.