Answer:
The answer is 2.5r
Step-by-step explanation:
Given;
To Find;
Now,
We know that, In a circle the sum of all the is equal to 360°
Here, let COD be x
So,
x + 215 = 360
x + 215 – 215 = 360 – 215
x = 145
Now,
CD = 2πr × (θ/360)
CD = 2(3.14) r × (145/360)
CD = 6.28r × 0.4
CD = 2.5r
Thus, The measure of CD is 2.5r
-TheUnknownScientist 72
