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anzhelika [568]
3 years ago
12

Find the value of cos J rounded to the nearest hundredth, if necessary.

Mathematics
2 answers:
WARRIOR [948]3 years ago
3 0

\green{\huge{\red{\boxed{\green{\mathfrak{QUESTION}}}}}}

Find the value of cos J rounded to the nearest hundredth

\bold{ \red{\star{\blue{GIVEN }}}}

HYPOTHESES= 13

PERPENDICULAR= 12

BASE = ?

\bold{\blue{\star{\red{TO \:  \: FIND}}}}

\cos(j)  =  ?

\bold{  \green{ \star{ \orange{FORMULA \:  USED}}}}

  1. PYTHAGORAS THEROM
  2. \cos(j) =  \frac{ BASE}{HYPOTENUSE}

\huge\mathbb{\red A \pink{N}\purple{S} \blue{W} \orange{ER}}

<h2>FOR BASE:- </h2>

{h}^{2}  =  {p}^{2}  +  {b}^{2}

{13}^{2}  =  {12}^{2}  +  {x}^{2}  \\ 169 - 144 =  {x}^{2}  \\ 25 =  {x}^{2}  \\  \sqrt{25}  = x \\ 5 = x = base

<h2>NOW :- </h2>

\cos(j) =  \frac{ BASE}{HYPOTENUSE}

\cos(j)  =  \frac{5}{13}  \\  \cos(j)  = 0.34

madam [21]3 years ago
3 0

Answer:

cosJ ≈ 0.38

Step-by-step explanation:

This is a 5- 12- 13 right triangle

with HI = 12, HJ = 13, IJ = 5

cosJ = \frac{adjacent}{hypotenuse} = \frac{IJ}{HJ} = \frac{5}{13} ≈ 0.38 ( to nearest hundredth )

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