The red chord is a diameter of the circle, so the length of the blue arc is half the circle's circumference.
The circumference of a circle with diameter is
, so the circle has circumference
, and so the arc has length
.
Sally has 16 marbles in her collection. John has only 7 marbles. Sally gives John 8 of her marbles. How much marbles does John h
1 answer:
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