A circle has a chord that goes from 5π4 to 4π3 radians on the circle. If the area of the circle is 50π, what is the length of the chord?

1 Answer
Aug 28, 2016

=1.85

Explanation:

A chord that goes from 5π4to 4π3
so it travels the distance 4π35π4=π12;
or
π12÷2π=124 of the Circumference of the Circle
Area of the Circle=πr2=50π
or
r2=50
or
r=50
or
r=7.1
Circumference of the circle=2πr=2(π)(7.1)=44.43
Therefore Length of the chord=44.43×124=1.85