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100 POINTS!!! In one area, the lowest angle of elevation of the sun in winter is 21° Find the distance x that a plant needing full sun can be placed from a fence that is 10.5 feet high. Round your answer to the tenths place when necessary.

100 POINTS In one area the lowest angle of elevation of the sun in winter is 21 Find the distance x that a plant needing full sun can be placed from a fence tha class=

Respuesta :

To find the length of the missing side x, use Tan trigonometric formula

Tan: [tex]\frac{opposite}{Adjacent}[/tex]

Tan 21 = [tex]\frac{10.5}{x}[/tex]

Tan 21 × [tex]\frac{1}{10.5}[/tex] = [tex]\frac{10.5}{x}[/tex]×[tex]\frac{1}{10.5}[/tex]

[tex]\frac{10.5}{Tan 21}=x[/tex]

x=27.4

X= 27.4 ft

Hope it helps!

Answer:

x = 27.4 ft

Step-by-step explanation:

Here given:

  • opposite side: 10.5 ft
  • adjacent side: x ft
  • to that angle: 21°

So, use tan rule:

[tex]\sf tan(\theta) = \dfrac{opposite}{adjacent}[/tex]

insert values

[tex]\sf tan(21) = \dfrac{10.5}{x}[/tex]

make 'x' subject

[tex]\sf x= \dfrac{10.5}{tan(21) }[/tex]

calculate value

[tex]\sf x = 27.35343...[/tex]

rounded to nearest tenth

[tex]\sf x = 27.4 \ ft[/tex]