Area of inscribed equilateral triangle (video) | Khan Academy
https://www.khanacademy.org/...circles/.../area-of-inscribed-equilater...
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A worked example of finding the area of an equilateral triangle inscribed within a circle who's area is known ...Unit Circle Trigonometry
www.montereyinstitute.org/courses/.../COURSE.../U19_L1_T3_text_final.html
Use the triangle below to find the x- any y-coordinates of the point of intersection of the terminal side and the circle. Compute and . Confirm that they are equal to and . U19_L1_T3_14. Draw the 37° angle in standard position. The unit circle triangle is similar to the 3-4-5 right triangle. Because this hypotenuse equals the ...People also search for
The Unit Circle | Purplemath
www.purplemath.com/modules/unitcirc.htm
Purplemath. When you work with angles in all four quadrants, the trig ratios for those angles are computed in terms of the values of x, y, and r, where r is the radius of the circle that corresponds to the hypotenuse of the right triangle for your angle. In the drawing below, the angle ends in the second quadrant, as indicated by ...
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