Answer:
D. 8.53 units
Step-by-step explanation:
In the given circle, we can form two triangles:
i) ΔAOB connecting the radius OA and OB
ii) ΔCOD connecting the radius OC and OD.
We know that all the radius in a circle are the same measure.
We are given AB = 12.48 = CD 12.48 units.
Therefore, by SSS (Side-side-side) postulate the triangles AOB and COD are the congruent.
Therefore, the height of the triangle must be equal.
The height of triangle AOB is 8.53 units
The blue line is the height of the triangle COD.
Therefore, the length of the blue is 8.53 units.
