contestada


You go to the park on a windy day to fly a kite. The string makes an angle of 36° with
the ground and is 43 feet in the air. How long is the string? Round to the nearest tenth.
a. 23.5 b. 73.2 c.31.2 d.53.2

Respuesta :

Answer:

b.

Step-by-step explanation:

α=36∘   β=90 ∘   α+β+γ = 180∘  γ = 180∘  −α−β = 180∘  −36∘  −90∘ = 54∘

a=43

a b  =  sinα sinβ  b=a⋅   sinα  sinβ b=43⋅   sin36  ∘  

sin90∘ =73.16

 a  c   =  sinα  sinγ  c=a⋅  sinα  sinγ  c=43⋅   sin36 ∘ sin54 ∘  =59.18

a=43

b=73.16

c=59.18