On a circle of radius 4 find the x and y coordinates at angl

On a circle of radius 4 find the x and y coordinates at angle 180 degrees (or in radian measure). Select one: a. (0, 4) b. (4, 0) c. (4, 4) d. (-4, 0) e. (2, 2)

Solution

solution

radius r=4

angle theta= 180 degree

x = r·cos

       = 4·cos(180°)

       = -4

    y = r·sin

       = 4·sin(180°)

       = 0

    (x, y) = (-4, 0)

so answerr is d(-4,0)