Mathematics Question and Solution
a² = 8-8cos(360-90-108)
a² = 8-8cos162
a = 3.9507533624 units.
b = ½(180-162)
b = 9°
c = 90+9
c = 99°
d² = 3.9507533624²+1-2*3.9507533624cos99
d = 4.2242774658 units.
(4.2242774658/sin99) = (3.9507533624/sine)
e = 67.4783733984°
Calculating Alpha.
Let it be f.
f = 90-e
f = 90-67.4783733984
f (Alpha) = 22.5216266016°
f ≈ 22.52° to 2 decimal places.
Calculate x.
tan22.5216266016 = x/2
x = 2tan22.5216266016
x = 0.8293116961 units.
x = 0.83 units to 2 decimal places.
