Archive day

November 18, 2025

3,534 public questions were asked on this day.

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What is the value of cosθ if the terminal side of θ and the unit circle intersect at point (2√2, −2√2) .(1 point) Responses −2√2 negative Start Fraction Start Root 2 End Root over 2 End Fraction 12 Start Fraction1 over 2...
Asked by Mason 1 answer
When finding cosθ=3√2 on a unit circle, what type of special right triangle or a ray is used?(1 point) Responses 30-60-90 triangle 30-60-90 triangle a vertical ray from the origin a vertical ray from the origin 45-45-90...
Asked by Mason 1 answer
Which of the following correctly uses the special triangles on the unit circle to determine θ in degrees when cosθ=2√2 ? You may assume that 0°≤θ≤180° . (1 point) Responses 30° 30 degrees 90° 90 degrees 60° 60 degrees 45...
Asked by Mason 1 answer
Cosine is established as a rotation of a ray formed initially on which axis?(1 point) Responses the negative x-axis the negative x -axis the positive y-axis the positive y -axis the negative y-axis the negative y -axis t...
Asked by Mason 1 answer
Find the coordinates of the point shown on the unit circle, if cosθ=−12 .(1 point)
Asked by Mason 1 answer
Question Find cosθ if the y-coordinate of the point where the terminal side of θ intersects the unit circle is 2√2 , given that θ is an acute angle and in the first quadrant.(1 point)
Asked by Mason 1 answer
Use the image to answer the question. Graph of unit circle in the first quadrant. What is cos0° ? (1 point)
Asked by Mason 1 answer
Use the image to answer the question. Graph of unit circle in the first quadrant. If the cosine of an angle θ is 12 , what is θ ? You may assume that 0°≤θ≤180° . (1 point)
Asked by Mason 1 answer
Question A ray from the positive x-axis is rotated −270° . What is the cosine of the angle formed by this ray?(1 point)
Asked by Mason 1 answer
A point on the unit circle is (12,3√2) . What is the sine of the angle formed by a terminal ray that intersects the unit circle at this point?(1 point) Responses −3√2 negative Start Fraction Start Root 3 End Root over 2...
Asked by Mason 1 answer
Question What is the value of sine of θ when θ=90° ?(1 point) Responses 1 1 12 1 half -1 -1 0 0 Skip to navigation
Asked by Mason 1 answer
Use the special triangles on the unit circle to determine θ in degrees when sinθ=3√2 . (1 point) Responses 30° 30° 90° 90° 60° 60° 45° 45° Skip to navigation
Asked by Mason 1 answer
On the unit circle, a right triangle with an angle measure of θ has a leg opposite of θ with a length of 12 what is the length of the other leg? Use the Pythagorean Theorem.(1 point) Responses 2 2 3√2 the fraction with n...
Asked by Mason 1 answer
Use the image to answer the question. a right triangle graphed in quadrant 1 of the coordinate plane.Image Long DescriptionThe points left parenthesis start fraction start square root 3 end square root over 2 end fractio...
Asked by Mason 1 answer
Use the image to answer the question. A circle is drawn with a marked and labeled point plotted on the circumference. Image Long DescriptionA vertical line and a horizontal line intersect at the midpoint of the circle an...
Asked by Mason 1 answer
What is sin60° ? (1 point)
Asked by Mason 1 answer
A point (x,y) lies on the unit circle such that x=−1 . What is the y-coordinate for this point?(1 point) y=
Asked by Mason 1 answer
Question A 30-60-90 triangle drawn inside the unit circle intersects that unit circle at point (x,y) . What is the length of the hypotenuse of this triangle?(1 point)
Asked by Mason 1 answer
What is the x-coordinate of the point where the 45-45-90 triangle in this image intersects the unit circle? (1 point) The x-coordinate is . Be sure to rationalize the denominator.
Asked by Mason 1 answer
The hypotenuse of any triangle within the unit circle has a measure of what?(1 point)
Asked by Mason 1 answer
A triangle's hypotenuse within the unit circle has a radius equal to what?(1 point)
Asked by Mason 1 answer
What type of special right triangle drawn inside the unit circle intersects the unit circle at (2√2,2√2) ?(1 point) Responses a 30-60-90 triangle with the 30° angle at the origin a 30-60-90 triangle with the 30 degrees a...
Asked by Mason 1 answer
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 1 1 3√2 Sta...
Asked by Mason 1 answer
True or false, the hypotenuse of a triangle within the unit circle is always equal to the radius of the unit circle.(1 point) Responses true true false false
Asked by Mason 1 answer
True or false, the origin of the unit circle is at the point (0,0) .(1 point) Responses True True False
Asked by Mason 1 answer