Solve the problem.
-A figure skater must trace a figure eight on the ice that consists of two perfect circles, each with a radius of $10 \mathrm{ft}$. How far does the skater go in tracing the figure eight? (Use 3.14 for $\pi$.)
A) $62.8 \mathrm{ft}$
B) $31.4 \mathrm{ft}$
C) $29.4 \mathrm{ft}$
D) $125.6 \mathrm{ft}$

Question

Quizplus · Accepted Answer

The skater traces two circles, each with a circumference of $2\pi r$. For a radius of $10 \mathrm{ft}$, the circumference of one circle is $2 \times 3.14 \times 10 = 62.8 \mathrm{ft}$. Since there are two circles, the total distance is $2 \times 62.8 = 125.6 \mathrm{ft}$.

Solve the Problem 10ft10 \mathrm{ft}10ft How Far Does the Skater Go in Tracing the Eight

Solve the Problem $10 \mathrm{ft}$ How Far Does the Skater Go in Tracing the Eight