Need help with this trigonometry word problem
A ladder placed against a wall such that it reaches the top of the wall of height 6 m and the ladder is inclined at an angle of 60°. Find how far the ladder is from the foot of the wall.
Please show your work

Respuesta :

Nayefx

Answer:

[tex] \huge \boxed{ \boxed{ \sf 6\sqrt{3} \: or \: 10.4}}[/tex]

Step-by-step explanation:

to understand this

you need to know about:

  • trigonometry
  • PEMDAS

let's solve:

to find how far the ladder is from the foot of the wall

we will use tan function because we are given opposite and angle

we need to find adjacent

[tex] \quad \tan( \theta) = \dfrac{opp} {adj} [/tex]

let adjacent be BC

[tex] \boxed{ \red{ \boxed{accoding \: to \: the \: question : }}}[/tex]

[tex] \quad \: \tan( {60}^{ \circ} ) = \dfrac{6}{BC} [/tex]

we will use a little bit algebra to figure out BC

  1. [tex] \sf substitute \: the \: value \: of \: \tan( {60}^{ \circ} ) \: i.e \: \sqrt{3} : \\ \sqrt{3} = \frac{BC}{6} [/tex]
  2. [tex] \sf cross \: multiplication : \\ \therefore \: BC = 6\sqrt{3} \: or \: 10.4[/tex]

[tex]\text{And we are done!}[/tex]

Ver imagen Nayefx

Step-by-step explanation:

in triangle ABC

relationship between perpendicular and base is given by tan angle

tan 60=p/b

b=6/tan60=3.46m

the ladder is 3.46m from the foot of the wall.

Ver imagen Аноним