If the circumference of a circle is 35 inches, which is closest to its area?
A.
380 square inches
B.
98 square inches
C.
17 square inches
D.
35 square inches
I know that you get the area by doing π x radii radii but I can't seem to figure out how to get the radii, please help!
C/pi = d
d = 1/2 radius
Thank you yet again Ms. Sue!
Yes, B.
Good
To find the radius of a circle when you know the circumference, you can use the formula:
circumference = 2πr
where r represents the radius of the circle.
In this case, you are given that the circumference of the circle is 35 inches:
35 = 2πr
To solve for r, you can divide both sides of the equation by 2π:
r = 35 / (2π)
Now that you have the value of the radius, you can use the formula for the area of a circle:
area = πr^2
Substituting the value of r we just found:
area = π * (35 / (2π))^2
Simplifying:
area ≈ 22.5 square inches
Among the given options, the closest area to 22.5 square inches is option B, which is 98 square inches.
So it would be 35 / 3.14 = 11.146
then
11.146 / 2 = 5.573
and then
3.14 x 5.572 x 5.572 = 97.488?
Is the answer B?