Easy, 360!
4 x 90
2 x 180 = 4 x 90.
Cos(90 - x) = sin(x) so cos2(90 - x) = sin2(x)
90 * 12 = 1080
90 x 10 = 900
To solve for tan x degree 90 you do a few things. First, if x equals 90, then this equals 1.5597 radian or 89.36 degrees. This is the easiest way to solve tan x degree 90.
90 x 90 = 8,100
X + 35 = 90, therefore X = 90 - 35, so X = 55.
x would equal sqrt 90 or sqrt 9 x sqrt 10 = 3 root 10
60 multiplied by 90 is 5,400.
6 x 15 = 90
24 x 3.75 = 90