Question

Toby has a round tablecloth. According to its package, it has a circumference of 12.56 meters. What is the tablecloth's area?

Answer 1

To find the area (a) of the circle, first let's find the radius (r)

Since we know that the equation to find the circumference of the circle using the radius is r · 2 · π, we can divide the circumference by π (for this equation, we'll shorten it to 3.14)

12.56/3.14 = 4
Now divide by two,
4/2 = 2
r = 2

Now that we know the radius, we need to use this equation to find the area.

a = π · r²
a = π · 2²
a = π · 4
a = 12.57

The area of the circle is 12.57. Hope this helps! :)