Suppose an Arc of Length $s$ Lies on the Unit Circle $x ^ { 2 } + y ^ { 2 } = 1$

Multiple Choice

Suppose an arc of length $s$ lies on the unit circle $x ^ { 2 } + y ^ { 2 } = 1$ , starting at point $( 1,0 )$ and terminating at the point ( $x$ , $y$ ) . Use a calculator to find the approximate coordinates $( x , y )$ . Round coordinates to four decimal places when appropriate.


The unit circle $x ^ { 2 } + y ^ { 2 } = 1$
-s = 5.6

A) (-0.7756, °°°)
B) (-0.6313, 0.7756)
C) (0.7756, -0.6313)
D) (-0.7756, -0.6313)