Answer:
add all the sides together
a+b+c+d
Answer:
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Answer:
Use inverse cos to solve for x.
hope this helps
Okay, so all the angles of the triangle will add up to 180
You know one side is 104 and the other two are equal to each other.
180-104= 76
76 is both of the angles together so divide it by two to get 38
X=38
:)
