The circumference of a circle is 20 pi. What is the area of the circle in terms of pi?

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area=100π

Step-by-step explanation:

circumference=2πr

20π=2πr

20=2r

r=10

area=πr^2

area=π10^2

area=100π

step-by-step explanation:

x^2 -12x + 36 + y^2 = 36

x^2 + y^2 = 12x

r^2 = 12rcos(theta)

r = 12 cos(theta)

dc=6 square root of 3 and ac is 12 square root 3

c and d

step-by-step explanation:

square root of 3/2 = 18/c

cross multiply to get 18*2=√3*c

36/√3 * √3/√3 = c

c= 36*√3/3

c=12√3