7. The first Ferris wheel, designed by George Ferris, was built in 1893 in Paris, France. It had a diameter of 50 meters. About how many meters would you travel around in 2 rotations of this wheel? A \( 314 \mathrm{~m}^{\square} \) C \( 157 \mathrm{~m}^{\square} \) B 3925 \mathrm{~m}^{\mathrm{n}} D \( 1962.5 \mathrm{~m}^{\square} \)

The circumference of a circle is calculated using the formula \( C = \pi \times d \), where \( d \) is the diameter. For the Ferris wheel with a diameter of 50 meters, the circumference would be approximately \( 3.14 \times 50 = 157 \) meters. Now, if you take 2 rotations, you would travel around \( 2 \times 157 = 314 \) meters. So, the answer is \( A \, 314 \mathrm{~m}^{\square} \). Interestingly, the original Ferris wheel was a feat of engineering and a centerpiece for the 1893 World's Columbian Exposition in Chicago, symbolizing American ingenuity. It was so popular that it inspired future generations of amusement rides. Today, iconic Ferris wheels can be found in major cities around the world, becoming landmarks in their own rights, just like the one in Chicago!