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1. Find the measure of the side indicated (x). Round to the nearest tenth. Show your work to support your

answer

1. Find the measure of the side indicated (x). Round to the nearest tenth. Show your-example-1

2 Answers

2 votes

Answer:

13.8

Explanation:

cos37 = 11/x

0.79863551 = 11/x

x = 11/0.79863551 = 13.77 or 13.8

User Daniel Beck
by
6.2k points
4 votes

Answer:

Is this for a Trig class? just wondering

Explanation:

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

we want to find the Hypotenuse (Hyp) and are given an angle and the adjacent side (adj) sooo use CAH , b/c it has all of the pieces

Cos(37) = Adj / Hyp

Cos(37) = 11 / Hyp

swap Cos(37) and Hyp... an algebra trick you should know from college algebra or where ever you learned algebra

Hyp = 11 / Cos(37)

now solve with your handy TI 83 / 84 / 89 calculator :) if you don't have one go get one . :D get the 89 if you are going into engineering classes... the 83 /84 if not. (obviously there are many many other good choices, i'm not really a calculator salesman on the side :D )

Hyp = 13.77349...

Hyp = 13.8 ( rounded to nearest 10th ) :)

User PQB
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7.1k points