b = 75°
because vertically opposite angles are always equal
Answer:16.50
Step-by-step explanation: hope it helps
Answer:
I think option c is the answer
The length of the radius will be 22 units.
<h3>What is the radius?</h3>
The radius of a circle is defined as the distance of the center of the circle to its outer layer. It is a locus of a point present at some distance from the center point.
Now from the question, we have an expression:
![r=(\dfrac{6}{85} )\times(\dfrac{85}{12} )\times (\dfrac{121}{36} )\times (\dfrac{157}{12} )](https://tex.z-dn.net/?f=r%3D%28%5Cdfrac%7B6%7D%7B85%7D%20%29%5Ctimes%28%5Cdfrac%7B85%7D%7B12%7D%20%29%5Ctimes%20%28%5Cdfrac%7B121%7D%7B36%7D%20%29%5Ctimes%20%28%5Cdfrac%7B157%7D%7B12%7D%20%29)
By solving the above equation we get
![r=(\dfrac{18997}{864} )](https://tex.z-dn.net/?f=r%3D%28%5Cdfrac%7B18997%7D%7B864%7D%20%29)
![r=22](https://tex.z-dn.net/?f=r%3D22)
Hence the length of the radius will be 22 units.
To know more about radius follow
brainly.com/question/24375372