1angle = 90
4 angles =360
the answer is false
SinФ=-12/13
cosФ=Base/hypotenus
(hy)^2-(perpendicular)^2=(base)^2=13^2-12^2=5
cosФ=-5/13
.......................WELL I GOT 72.8
1/4 is 5oz, so you have 15 oz left
<span>Subtract 3 oz and you have 12/20 oz left </span>
<span>Divide numerator and denominator by gcf WHICH IS 4 </span>
<span>and you'll see that 3/5 is left over.</span>