The triangle is not a right angle
AC = 22 - 8 - 5 = 9
AC² = AB² + BC²
81 = 64 + 25
81 isn't equal to 89, the triangle is not a right angle
According to law of cosines the length of RQ can be written as
.
Given the length PR is 6 , the length of RQ is p, the length of PQ is 8 and the angle RPQ is 39 degrees.
A length of the triangle can be written as according to law of cosines if sides are given and one angle is 
We have to just put the values in the above equation.
as
.
p is the side opposite to angle given , the length of other sides are 6 and 8 and angle is 39 degrees.
Hence the side can be written as according to law of cosines if the angle is 39 degrees is as
.
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Exterior angles are complementary to the opposite interior angle
The best and most correct answer among the choices provided by your question is the first choice.
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1 fl oz </span><span>is the best estimate for the capacity of a bottle of salad dressing.</span>
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Answer: Anything for example:
Malik has 6 friend, he wants to equally give them some of the 18 cookies he back earlier that morning. How much will he give each person?
Step-by-step explanation: And the answer will be 3