The equation of the unit circle is given by:
In this case, we know
Calculating
Now, we can isolate
Since
The value of
A 30-60-90 triangle intersects the unit circle at point (x,y) , where y=12 . What is the value of x in point (x,y) ? Use the equation of the unit circle to determine the missing coordinate.(1 point) Responses 2√2 Start Fraction Start Root 2 End Root over 2 End Fraction 1 1 12 Start Fraction 1 over 2 End Fraction 3√2
1 answer
The equation of the unit circle is given by:
In this case, we know
Calculating
Now, we can isolate
Since
The value of