A lamp post, CAB, bent at point A after a storm. The tip of the lamp post touched the ground at point C, as shown below. What is the height, in feet, of the portion AB of the lamp post?

Question

anonymous · Answer

12 cos 45°
		
12 by tan 45 degrees. 
		
12 tan 45°
		
12 by cos 45 degrees.

anonymous · Answer

You have the side adjacent to the angle given. You want to find the opposite side. tan45 = x [opposite]/12. Can be re-written as 12tan45.

anonymous · Answer

ur my hero. ty