Answer:
the greatest common factor of 12 and 18 is 6.
Step-by-step explanation
GCF of 18 and 32 = 2.
GCF of 21 and 84 = 21.
GCF of 36 and 100 = 4.
GCF of 12 and 48 = 12.
GCF of 18 and 35 = 1.
GCF of 18 and 63 = 9.
GCF of 48 and 56 = 8.
the one that has 65 and 54, 3rd one
To find the area of any regular (regular means all sides are = and all angles are =) poylgon when you know the length of the apothem and the length of the side you can use the formula:
A = (1/2)ap where a = the length of the apothem and p = the perimeter of the polygon. You can also use n*s in place of p where n = the number of sides of the polygon and s = the length of the side.
A= (1/2)(16)(19*8) (An octagon has 8 sides.)
A = 1216 in^2
E. 72
6 feet long cast shadow = 24 feet pole
18 feet long cast shadow = 72 feet pole
18/6=3
24x3=72
