Find the exact circumference of a circle with an area equal to 36 sq. in.

12π  inches.

Step-by-step explanation:

Area = π r^2 = 36π  (given).

So r^2 = 36  giving r = 6.

The exact circumference = 2 π  r

= 2 π * 6

= 12π.

12πin

Step-by-step explanation:

From the question given, the area of the circle is 36πin^2

Recall:

Area of circle = πr^2

36π = πr^2

Divide both side by π

36 = r^2

Take the square root of both side

r = √36

r = 6in

Circumference of a circle = 2πr

= 2π x 6

= 12πin

1. is 4 and 2. is 3

step-by-step explanation:

so if you look at the first one you see that 1 is to 4 and 2 is to 8 and so on, so you can see for every 1 there is a times 4 so if it were 3 then it would be 3*4 and it is 12

for number 2 it is 3 because 1 is to 3 and 2 is to 6 so for every 1 there is 3 so if it were 3 then there would be 3*3 = 9

true

step-by-step explanation: