The circumference of a circle is 15 pi centimeters what is the area of the circle in terms of pi

[225(pi)]/4

Step-by-step explanation:

circumference = pi(diameter)

area = pi (radius)^2

Diameter = 2(radius)

15pi cm = pi(diameter)

divide both sides by pi

diameter = 15

radius = 7.5

Area = pi (7.5)^2

A  = 56.25 pi

most teachers prefer fractions so

225pi/4

(n^3 - n)

= n(n-1)(n+1)

since it is divisible by 3 and 2 ,because it is a multiple 3 consecutive number

if, n-1 is odd then n+1 is also odd, then it is a multiple of 9

but if, n-1 is even then n+1 is also even, then it is a multiple of 4

so, largest multiple = max(9*2, 4*3) = max(18, 12) = 18

step-by-step explanation: