meggie98
meggie98 meggie98
  • 03-02-2020
  • Mathematics
contestada

Find the length of a.

Find the length of a class=

Respuesta :

jay40891
jay40891 jay40891
  • 03-02-2020

Answer:

22.2

Step-by-step explanation:

Using cosine rule,

[tex]a^{2} = 12^{2} + 15^{2} -2(12)(15)cos110[/tex]°

[tex]a = \sqrt{12^{2} +15^{2}-2(12)(15)cos110 }[/tex]

[tex]a = 22.2 (3 sf)[/tex]

Answer Link
daviodel
daviodel daviodel
  • 03-02-2020
The answer is 22.2 is correct
Answer Link

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