A^2 + b^2 = c^2
9^2 + 12^2 = 225
square root of 225 is 15
Hence the number of packages of screws in each shipping box is: 469
Hence option (B) is correct.
the answer have to be would be (-3, 1)
Answer:
Step-by-step explanation:
Given
Let the three sides be represented with A, B, C
Let the angles be represented with
[See Attachment for Triangle]
What the question is to calculate the third length (Side B) and the other 2 angles ()
Solving for Side B;
When two angles of a triangle are known, the third side is calculated as thus;
Substitute: , ;
Take Square root of both sides
<em>(Approximated)</em>
Calculating Angle
Substitute: , ;
Subtract 180 from both sides
Divide both sides by -144
Take arccos of both sides
<em>(Approximated)</em>
Calculating
Sum of angles in a triangle = 180
Hence;
Make the subject of formula