Question

Examine the diagram of circles A and C.

Circle A has a radius of 5, and arc BD has a length of 8.84. Circle C has a radius of 2.5. Angles BAD and FCE are congruent.

Circles A and C as described.


What is the length of arc FE?
Enter your answer as a number, like this: 42.25

Answer 1

4.42

Explanation:

The length of arc FE is half that of arc BD (this comes from the ratio of the lengths of the radii).

So, the length of arc FE is 4.42.