SOLUTION: A dart board has a diameter of 40 cm and is divided into 20 congruent sector.What is the area of one of the sector?
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Question 996968: A dart board has a diameter of 40 cm and is divided into 20 congruent sector.What is the area of one of the sector? Answer by fractalier(6550) (Show Source):
You can put this solution on YOUR website! One-twentieth of the area of the dart board would be
(1/20)(pi)(r^2)
If diameter is 40 cm, the radius is 20 cm.
Thus the are of one sector is
(1/20)(pi)(20^2) = 20(pi) cm
