Question

The Earth is - in reality - 12,740 kilometers wide, but you choose to build a model of the Earth with a ScaleFactor of 100 km per inch. How large should your model Earth be?

a. 0.00785 kilometers
b. 127.4 inches
c. 1.274 kilometers
d. 1,274,000 inches
e. 0.00785 inches
f. 0.001274 inches

Answer 1

The size of the model Earth should be 127.4 inches.

Step-by-step explanation:

To determine the size of the model Earth, we need to divide the actual diameter of the Earth by the scale factor. The scale factor is given as 100 km per inch. So, to find the size of the model Earth, we divide 12,740 kilometers by 100 km per inch. This gives us 127.4 inches, which is the correct answer.