Question

The diameter of Earth is 12.7Mm. Express this diameter in centimeters.

Answer 1

To convert the diameter of Earth from megameters to centimeters, multiply by 1,000,000 to get meters, and by 100 again to convert meters to centimeters. The Earth's diameter of 12.7 Mm is thus equivalent to 1.27 billion centimeters.

Step-by-step explanation:

The diameter of Earth is given as 12.7 Mm, which stands for megameters. To convert megameters to centimeters, we can use conversion factors. First, we know that 1 megameter (Mm) is equal to 1,000,000 meters (m), and 1 meter is equal to 100 centimeters (cm). Therefore, to convert the diameter of Earth from megameters to centimeters, you multiply by 1,000,000 to get meters, and then by 100 to get centimeters.

So, 12.7 Mm is equal to 12.7 x 1,000,000 x 100 cm, which simplifies to 1,270,000,000 cm or 1.27 billion centimeters.

Answer 2

The diameter of Earth in centimeters is 1,270,000,000.

Step-by-step explanation:

To express the diameter of Earth in centimeters, we need to convert from kilometers to centimeters. Since there are 100 centimeters in a meter and 1000 meters in a kilometer, we can multiply the diameter in kilometers by 100,000 to convert it to centimeters.

So, the diameter of Earth in centimeters is 1,270,000,000 centimeters.