Question

Find the arc length of the partial circle.

Answer 1

Answer:

11

Step-by-step explanation:

$= \frac{1}{2} \pi \: r \\ = \frac{1}{2} \times \frac{22}{7} \times 7 \\ = \frac{1}{2} \times 22 \\ = 11$

Answer 2

Answer:

$11$

Step-by-step explanation:

$\frac{90}{360} \times 2 \times \pi \times 7 \\ \frac{1}{4} \times 2 \times \frac{22}{7} \times 7 \\ = 11$