What is the Earth circumference in kilometers?

Master metric systems and units effortlessly. Study with our Metric Mastery Test featuring flashcards and multiple choice questions. Each question provides hints and detailed explanations to help you succeed. Enhance your skills today!

Multiple Choice

What is the Earth circumference in kilometers?

Explanation:
The Earth's circumference is about 40,000 kilometers. Using C = 2πR with an average radius around 6,371 km gives C ≈ 2π × 6,371 ≈ 40,030 km, which is 4.0 × 10^4 km in scientific notation. The other magnitudes are off by factors of ten or more: 4.0 × 10^5 km would be far too large, 4.0 × 10^3 km too small, and 4.0 × 10^6 km vastly too large. So 4.0 × 10^4 km is the best match.

The Earth's circumference is about 40,000 kilometers. Using C = 2πR with an average radius around 6,371 km gives C ≈ 2π × 6,371 ≈ 40,030 km, which is 4.0 × 10^4 km in scientific notation. The other magnitudes are off by factors of ten or more: 4.0 × 10^5 km would be far too large, 4.0 × 10^3 km too small, and 4.0 × 10^6 km vastly too large. So 4.0 × 10^4 km is the best match.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy