SOLUTION: A dart board has a diameter of 40cm and is divided into 20 congruent sectors.What is the area of one of the sector?
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Question 1146574: A dart board has a diameter of 40cm and is divided into 20 congruent sectors.What is the area of one of the sector? Answer by VFBundy(438) (Show Source):
You can put this solution on YOUR website! Since the diameter is 40 cm, the radius is 20 cm.
The area of a circle is ¶r².
Area = ¶(20²)
Area = 400¶
The area of the dartboard is 400¶. 1/20 of this is 20¶. So that's the area of one sector.
