Make sure you know the formula pertaining to the question.
1. c=2(pi)(r)
2. c=2(pi)(d)
r= radius
d= diameter
c= sircumference
So we are given that the circumference of a circle is 12.3pi and the radius is unknown.
So let's plug in the known values
**we use the formula with the radius, becuase we are looking for the radius.
c=2(pi)(r)
12.3(pi)=2(pi)(r)
divide each side by pi
12.3=2(r)
divide each side by 2
r=6.15 in.
Answer: True!
Step-by-step explanation: Rhombuses are like squares with an 4 equivalent sides!
hope this helped have a nice day ! :)
Answer:
<h2> √3</h2>
Step-by-step explanation:

From triangle: 
Therefore:

No solution but the equation is true