A 7 foot long board is propped against the wall of a house. The board forms a 60 angle with the ground. How far is the base of t
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Adjacent Angles are the angles that shares a common arm, where as the vertical angles are the ones that are exact opposite to each other.
Now, since we know the concept, let's dig in ~
- DBC and ABC - Adjacent
- ABC and DBE - Vertical
- CBD and EBA - Vertical
- EBA and ABC - Adjacent
Multiply by the opposite sign the denominator. In the denominator we have the difference of squares.
