acaciaalexesmith acaciaalexesmith

06-05-2024
Mathematics

Answered

Find the length of side DE to 1 decimal place.
D
42°
E
F
12

Find the length of side DE to 1 decimal place D 42 E F 12 class=

Answer :

olumideolawoyin olumideolawoyin

06-05-2024

Answer:

16.1

Step-by-step explanation:

Using Trigonometric ratio,

Cos E = adjacent / hypotenus

Cos 42° = 12/DE

DE = 12/ Cos 42°

DE = 16.1

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