GCF of 72 and 81. Show your work.

greatest factor of 72 and 81 is 9.

Step-by-step explanation:

i got this because 9 is the greatest number when multiplied that will go into both 72 and 81. i solved this by comparing the multiples of 72 and 82.

hope this helped :))

9

Step-by-step explanation:

circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation: