AC= √CD^2+AD^2
AC= √AB^2+BC^2
Those two are true
See explanation in photo below
Good luck
AC= √AB^2+BC^2
Those two are true
See explanation in photo below
Good luck
Twice a number, n, increased by 3 is less than the number, n, decreased by four. inequality
1 answer:
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Answer:
The measure of angle A is
Step-by-step explanation:
we know that
Applying the law of cosines
substitute the values and solve for cos(A)