Answer:
A = πx² cm²
Explanation:
the area (A) of a circle is calculated as
A = πr² ( r is the radius)
Given circumference C = 2πx , and C is calculated as
C = 2πr , then equating gives
2πr = 2πx ( divide both sides by 2π )
r = x
Then
A = πr² = πx² cm²