Question

PLEASE HELP:
A lamp post, CAB, bent at point A after a storm. The tip of the lamppost touched the ground at point C, as shown below.
What is the height, in feet, of the portion AB of the lamp post? (5 points)
A.) 12tan45
B.) 12/tan45
C. 12/ cos45
D.) 12cos45

Answer 1

That is a special triangle... 45-45-90

Answer 2

The legs will be both the same length,

Answer 3

Using the tangent you say
\[\tan(45) = \frac{ opp }{ adj } = \frac{ AB }{ 12 }\]

Answer 4

tan(45) = 1

but they want you to leave it as tan(45) times 12

Answer 5

thank you so much for explaining that. it helped a ton.

Answer 6

welcome