the area of a pizza is 220 square centimeters. what is the radius
pi r^2 = 220
r^2 = 220/pi
r = sqrt (220/pi)
A = pi*r2
A = pi * r^2
220 = 3.14 * r^2
220 / 3.14 = r^2
70.006 = r^2
8.3559 = r
I should point out that most of the pizzas I eat are not round.
To find the radius of a pizza when you know its area, you can use the formula for the area of a circle:
A = πr^2
where A is the area, π (pi) is a constant approximately equal to 3.14159, and r is the radius of the circle.
In this case, you know that the area of the pizza is 220 square centimeters. So, you can plug this value into the formula and solve for the radius:
220 = 3.14159 * r^2
To isolate r^2, divide both sides of the equation by π:
r^2 = 220 / 3.14159
Now, take the square root of both sides to solve for r:
r = √(220 / 3.14159)
Using a calculator, evaluate the right-hand side to find the approximate value of r.