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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)?

 

 Dec 26, 2020
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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

 Dec 26, 2020

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