4 years ago

Please help with this!!! My grade depends on it!!!

Mathematics

1 answer:

riadik2000 [5.3K]4 years ago

5 0

Answer:

52 degree

Step-by-step explanation:

So using cos again again :v

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

AC = 31.796cm

then

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

Cos A = 0.61

A=52.17degree

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