Answer:
314.16
Step-by-step explanation:
A= πr²
d= r²
20 × π = 314.16
Answer:
the question is blurry, please resend it
Answer:14.56
Step-by-step explanation:
In its most general form, algebra is the study of mathematical symbols and the rules for manipulating these symbols; it is a unifying thread of almost all of mathematics. It includes everything from elementary equation solving to the study of abstractions such as groups, rings, and fields.
