A circle's center is at (2 ,7 )(2,7) and it passes through (6 ,4 )(6,4). What is the length of an arc covering ( pi ) /3 π3 radians on the circle?

1 Answer
Jan 29, 2016

( 5 pi ) / 3 5π3

Explanation:

Please check my solution here for a detailed explanation.

Solution
Radius r = sqrt( (6 - 2)^2 + (4 - 7)^2 ) = 5 r=(62)2+(47)2=5.
Arc length S = ( 5 pi ) / 3 S=5π3.