Find the circumference of a circle with an area of 254.47 square inches.

56.5 inches

Step-by-step explanation:

We are given the area of a circle and we are to find the circumference of the same circle.

We know that the area of a circle is given by so equating the given value to get.

r = 9 inches

Since we now know the radius of the circle so we can find its circumference.

Circumference of circle = = = 56.5 inches

56.54 in

Step-by-step explanation:

The area can be calculated with this formula:

Where r is the radius

And the circumference can be calculated with this formula:

 Where r is the radius

Solve for the radius from  . Then, tha radius is:

Then, the circumference is:

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer