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A firefighter leans an 18-foot long ladder against a wall so that it reaches a height of 13 feet.
What angle does the ladder make with the ground?

Respuesta :

Answer:

These kinds of problems are tough Sophieeeee  :P

Step-by-step explanation:

recall

Use SOH CAH TOA to recall how the trig functions fit on a triangle

SOH: Sin(Ф)= Opp / Hyp

CAH: Cos(Ф)= Adj / Hyp

TOA: Tan(Ф) = Opp / Adj

since we are given the length of the ladder and the height up the wall .. use SOH ⇒ sin(Ф) = 13/18

Ф =  arcSin(13/18)

Ф = 46.2382 °

do you see how to do that ??

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