Answer:
6 foot away
Step-by-step explanation:
A board AC with measure of 12 foot rests against the wall.
The angle that board makes with the ground is 60°
Then we have to calculate the distance ( BC) of board from the wall.
Cos 60° = [tex]\frac{BC}{AC}[/tex]
[tex]\frac{1}{2}[/tex] = [tex]\frac{BC}{12}[/tex]
BC = [tex]\frac{12}{2}[/tex]
= 6 foot
Therefore, board is 6 foot away from the wall.
