We know that and this is the only point when sin and cos are equal lengths. Because both
Now if the sin of 30° is a half that would mean that cos of 60° is also a half.
Hope this helps.
<u>r3t40</u>
If angle ABD = (2x – 7)º, angle DBC = (8x + 16), and angle ABC = 159°, find ABD.
1 answer:
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