Let <span>p ----------------> is the perimeter of the base </span><span>h ---------------> is the height </span><span>BA-------------> is the area of the bases </span><span>LA--------------> is the lateral area
we know that surface area is </span><span>the sum of base areas plus lateral areas </span><span>then SA=[BA]+P*h but remember that LA=P*h then SA=</span>[BA]+LA----------> SA=BA+LA
the answer are the options B.) SA=BA+LA and the option D.) SA=BA+ph
As we know that Fx = Fcos30.0deg <span>60.0N = Fcos30.0deg </span> <span>F = 60.0N/cos30.0deg </span> <span>F = 69.3 N </span><span> Fy = Fsin30.0deg </span> <span>Fy = 69.3 N sin 30.0 deg </span> <span>Fy = 34.6 N </span>hope it helps
a. because to divide 6 1/4 and 3 you need to make the improper fraction a mixed number so the equation is 25/4 / 3/1 then you get the recipricol of 3 witch is 1/3 then you multiply 1/3 x 25/4 whitch is 25/12=2 1/12