Answer:
I assume you mean pi (π) squared, which is π^2. Calculating with π^2 is similar to calculating with any other number, except that you use π^2 instead of a regular number. Here are a few examples:
Example 1: Find the circumference of a circle with radius 5π.
The formula for the circumference of a circle is C = 2πr, where r is the radius. Substituting 5π for r, we get:
C = 2π(5π) = 10π^2
Therefore, the circumference of the circle is 10π^2.
Example 2: Find the area of a circle with diameter 3π.
The formula for the area of a circle is A = πr^2, where r is the radius. Since the diameter is 3 times the radius, we have:
r = (1/2)(3π) = (3/2)π
Substituting this into the formula, we get:
A = π((3/2)π)^2 = (9/4)π^3
Therefore, the area of the circle is (9/4)π^3.
In general, whenever you see π^2 in a formula, you can just substitute it for the regular number. Keep in mind that π is an irrational number (it goes on forever without repeating), so you may need to use an approximation like 3.14 or 22/7 depending on the level of accuracy required in your calculations.
Explanation:
explanation included above with examples.