A drawer contains 4 red socks, 7 white socks, and 11 blue socks. Without looking, you draw out a sock and then draw out a second
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Area of a triangle = 
r = diameter/2
so area = pi * (13/2)^2
= 3.14*6.5*6.5 = 132.665
r = diameter/2
so area = pi * (13/2)^2
= 3.14*6.5*6.5 = 132.665