Answer:
A = 
Step-by-step explanation:
Area of a circle is:
A = πr²
We are given a radius of 20 cm.
A = πr²
A = π(20)²
A = π400
<em>A = 400πcm²</em>
Hope this helps.
I believe its 80 if you derive it out, but there is no units of measurement.
Answer:
x = 12
Step-by-step explanation:
Answer:
44?.. im going to get rhis one wrong