Pi Day Questions

The value pi or $$\pi$$ represents which one of the following ratios? A ratio is a comparison of 2 values and can be written as a fraction such that the numerator is being divided by the denominator.

Hint: The circumference of a circle equals the diameter of the circle multiplied by pi, so the formula is $$C=\pi\left(d\right)$$ and since the diameter is twice the radius, we have $$C=2\pi r$$ . Solve these formulas for $$\pi$$ . Only 1 choice is correct.

The value pi or $$\pi$$ represents which one of the following ratios? A ratio is a comparison of 2 values and can be written as a fraction such that the numerator is being divided by the denominator.

Hint: Use the formulas $$C=\pi\left(d\right)$$ and $$C=2\pi r$$ to solve for $$\pi$$ . Only 1 of these choices is the result of solving these equations for $$\pi$$ . To solve for pi, divide both sides of the equation by whatever is multiplied with pi in the formula which is solved for the circumference.

Given that the area of a circle is equal to pi times the square of the radius of the circle or $$A=\pi r^2$$ , solving for $$\pi$$ gives us the formula:

Hint: To solve the area formula for $$\pi$$ , divide both sides of the equation by $$r^2$$ .

The exact value of pi or $$\pi$$ is classified as what type of number?

Hint: Search "is pi rational or irrational" on google.com.

Which TWO of the following rational numbers can be used to approximate the irrational number pi or $$\pi$$ ? Note: SELECT 2 CHOICES.

Search google.com for "pi day history" to answer this question.

The first official Pi Day celebration occurred:

Search google.com for "pi day history" to answer this question.

What year did the United States House of Representatives pass an official resolution to recognize March 14th as "Pi Day"?