The 5 circles have the same size. If the side of the large square is 1, what is the radius of each circle (to 3 decimal places)?
Triangles are 30-60-90
Sides of a triangle are a = 1/2 b = (√3)/2 c = 1
Semiperimeter s = 1.183
Area of a triangle A = 0.217 square units
Radius of a circle r = A / s r = 0.183
