To find the circumference of a circle you multiply pi (3.14) by the diameter ad to find the area you multiply pi (3.14) times the radius squared
Since the circumference is 31.4 divide that by pi to find the diameter which is 10
The radius of a circle is half of the diameter, so for this circle the radius is 10 / 2 = 5
Take the radius and square it : 5^2 = 25
Then multiply the squared radius by pi (3.14) to find the are : 25 * 3.14 = 78.5
So the area of this circle is 78.5 centimeters squared
Hope this helps! Mark as Brainliest please! :)))
Answer:
x = -1/5 = -0.5
Step-by-step explanation:
9(x + 5)2 = 81
Answer:
$4.50 for 150 papers
Step-by-step explanation:
I believe the answer is 110
