Please review your questions before posting them. Your spelling makes it necessary for the reader to try to guess what you mean.
If you meant that the perimeter (not permitter) of a square is 12 units, then the length of one side (not silence) of the rectangle is (12 units)/4 = 3 units.
You divide 162 and it equals to 81
x=25,y=15 Not to sure abt this answer but I think I got it
F1 = 6*cos(30) i + 6*sin(30) j = 5.20 i + 3 j
<span>F2 = 0 i + 5 j </span>
<span>R = F1 + F2 </span>
<span>Add the 'i's together (x direction) and the 'j's together (y direction) </span>
<span>R = (5.20 + 0) i + (3 + 5) j = 5.2 i + 8 j </span>
<span>Magnitude: </span>
<span>||R|| = </span>√<span>(5.2^2 + 8 ^2) = </span>√<span>91 = 9.54 </span>
<span>Direction: </span>
Θ<span> = atan ( Rj / Ri ) = atan( 8 / 5.2 ) = 57.0</span>⁰
