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In this activity, you will investigate the basis for the extended ratio of the 30 -60 -90 triangle. To investigate the ratio, we will use an equilateral triangle with a side length of 2. Proceed to part A to begin. On triangle ABC , draw the altitude from vertex A to side BC. (Recall that an altitude is perpendicular to the line to which it is drawn.) Use the text box tool to label the point where the altitude meets side BC as point D. Then, determine the measures of < BAD and