Question

A missing piece of a board game, a circular disk, had an area of 100,608. 7. The replacement disks online a

listed using circumferences. What size circumference should be ordered?

1. 179 mm

2. 1,263,645. 774 mm

3. 0. 7 mm

4. 1,124. 12 mm

Answer 1

First determine the radius of the circle from the area of the circle
Use the radius determined above to calculate the circumference
Area of a circle = np2
where r= radius
n= pi = 3.14
100.608.7mm=mp2
to determine the radius, divide both sides of the equation by 3.14
32,040.98726mm = p2
Find the square root of 32,040.98726mm
V32,040.98726mm
r= 179mm
Circumference of a circle = 2nr
2 × 179 × 3.14 = 1.124.12 mm

Hope this helps