It’s an Improper Fraction
Answer:

Step-by-step explanation:


56°
A triangle makes a total of 180°
They have already given you the 83° and you know a line makes 180° so 180-139 gives you 41°.
83+41=124
180-124=56
Given problem;
A =
r²
Solve for π;
To solve for π implies that we make it the subject of the expression.
So;
A = π r²
Now multiply both sides by 
So;
A x
=
x r² x
r² cancels out from the right side and leaves only π;
π = 
So 
Answer: Please refer to the attachment below
Step-by-step explanation: