Question

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Answer 1

2.91 units

Explanation:

If and only if this is a right triangle, we can apply the some fimctopm to determine the length of side BD:

side BC

tan 20 degrees = ---------------

8

or side BC = 8 tan 20 degrees. Since tan 20 degrees = 0.364 radians,

side BC has length 8(0.364) = 2.91 units