If anyone’s good at this stuff, please help. :’)

it should be 0.17 correct me if i'm wrong

Step-by-step explanation:

Explanation:

Draw a line segment from point O to point B. Do the same from O to A. We have two right triangles OEA and OEB. These right triangles are congruent and we can use the HL (hypotenuse leg) theorem to prove this. The HL theorem only works for right triangles.

Because triangle OEA and triangle OEB are congruent, their corresponding segments BE and EA are congruent.

BE = 5 leads to EA = 5 and

BA = BE+EA segment addition postulate

BA = 5+5

BA = 10

Draw a segment from point O to point C. Repeat from O to D.

We can use HL to prove that triangle OFC is congruent to triangle OEA, and also tie in triangle OFD as well. So basically all four right triangles are congruent to one another. They are the same triangle.

This must mean that CF = AE = 5 and FD = BE = 5, so

CD = CF+FD = 5+5 = 10

In short, CD is the same length as AB. This is because the chords are the same distance away from the center. We go from BE = 5 to AB = 10 which leads to CD = 10 as well.