Answer:
Step-by-step explanation:
57.6
The answer is A. Subtract the five on both sides and you end up with A :)
Answer:
option A is the answer hope you find it helpful
<u>Prove that:</u>

<u>Proof: </u>
We know that, by Law of Cosines,
<u>Taking</u><u> </u><u>LHS</u>
<em>Substituting</em> the value of <em>cos A, cos B and cos C,</em>



<em>On combining the fractions,</em>

<em>Regrouping the terms,</em>



LHS = RHS proved.
Answer:
12
Step-by-step explanation:
Count the units in between the points