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a. Label the length of the base of each triangle in the unit circle. Plot these lengths at their corresponding angle locations on the graph. You will be plotting points in the form (θ = angle in degrees, y = length of base).
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b. Draw five new triangles that are congruent to the given five triangles but are located in the second quadrant. Label the triangles with their angle measures (from 0°) and the length of the bases. Add five new points corresponding to these triangles to the graph.
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c. Continue this process by drawing triangles in the third and fourth quadrants. You should have a total of twenty triangles drawn and twenty points plotted. Then, label the points where the circle intersects the x- and y-axes with their angle measures and base lengths and add these points to the graph as well. Sketch a smooth curve through all of the points.
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d. Compare this graph to the sine graph you created in problem 9‑12. How are the two graphs similar? How are they different? Note that both graphs show one cycle of the periodic function, a connected piece of the graph that is one complete repetition of the pattern.
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