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zzz [600]
2 years ago
10

Find the missing side of the triangle SHOW YOUR WORK!!

Mathematics
2 answers:
o-na [289]2 years ago
7 0

139.49

Step-by-step explanation:

using trig ratios.

tan=o/a

tan74°=n/40

40tan74°=n

use calculator to solve

=139.49

hope this helped :)

Ksju [112]2 years ago
5 0

<u>We will solve it using trigonometry formulas:</u>

<u></u>\boxed{&#10;\begin{minipage}{5 cm}&#10;{Formulae:} \\ \\&#10;$\bigstar\:\:\sin\theta\:=\:\frac{Opposite}{Hypotenuse} \\ \\&#10;\bigstar\:\:\cos\theta\:=\:\frac{Adjacent}{Hypotenuse} \\ \\&#10;\bigstar\:\:\tan\theta\:=\:\frac{Opposite}{Adjacent}$&#10;\end{minipage}&#10;}

\rule{190pt}{2pt}

\bold{\ttt{Given,}}\\

\sf{Adjacent=40}\\&#10;\sf{Opposite=n}\\&#10;\sf{\theta=74\°

\bold{\ttt{Solution,}}\\

{\tan\theta\:=\:\frac{Opposite}{Adjacent}}}

{\sf{\tan74\:=\:\frac{n}{40}

{\sf{\tan74\:x\:40\:=\:n

{\sf{139.49\:=\:n

{\sf{n\:\approx139.5

\boxed{\sf{n\:=\:139.5}}

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