Asked by Ashley
A 30 degree central angle is in central position in a circle with a radius of 7 square roots of 5 (245). What are the coordinates of the point where the terminal ray intersects the cicrle?
Answers
Answered by
Reiny
construct a right angled triangle
and call the point at the circle (x,y)
then sin30 = y/7√5
y = (1/2)(7√5) = 7√5/2
cos30 = x/7√5
x = (√3/2)(7√5) = 7√15/2
and call the point at the circle (x,y)
then sin30 = y/7√5
y = (1/2)(7√5) = 7√5/2
cos30 = x/7√5
x = (√3/2)(7√5) = 7√15/2
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.