Question

1. the length of a new pencil is closest to: *

a. 5 millimeters.
b. 20 centimeters.
c. 1.5 meters.
d. 2 kilometers.

Explanation:

Step1: Convert units for comparison

We know that 1 meter = 100 centimeters, 1 centimeter = 10 millimeters, and 1 kilometer = 1000 meters. So 5 millimeters = 0.5 centimeters, 1.5 meters = 150 centimeters, 2 kilometers = 200000 centimeters.

Step2: Estimate pencil length

A new - pencil is usually about 20 centimeters long. 0.5 centimeters is too short, 150 centimeters and 200000 centimeters are extremely long for a pencil.

Answer:

B. 20 centimeters