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Find the length of x, round too the nearest tenth

Find The Length Of X Round Too The Nearest Tenth class=

Sagot :

Bhadelsimron19idn

Answer:

Step-by-step explanation:

take 72 degree as reference angle

using cos rule

cos 72=adjacent/hypotenuse

0.30=4/x

x=4/0.30

x=13.33

x=13.3

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