## Fundamentals of Physics Extended (10th Edition)

Published by Wiley

# Chapter 1 - Measurement - Problems: 1a

#### Answer

${2*\pi*radius}$ =${2*6370*3.14}$ $=40024 km$

#### Work Step by Step

First of all, 1 kilometer = 1000 m so Earth's radius = 6370 kilometers Circumference = 2*$\pi$*radius
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