3 years ago

Please help me!!!!!!!!!

Mathematics

2 answers:

Vlad [161]3 years ago

3 0

Answer:

57 degree

Step-by-step explanation:

Using cos formula again~

So AB^2=BC^2+AC^2-2*BC*AC*cosC

AB= 25.15cm

BC^2=AB^2+AC^2-2ABACcosA

Cos A=0.55

A=56.58degree

Brut [27]3 years ago

3 0

C is the Answer to Your question

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