Mathematics Question and Solution
a = ¼(60)
a= 15 units.
b² = 40²+15²
b = 5√(73) units.
b = 42.7200187266 units.
c = ½(b)
c = 2.5√(73) units.
c = 21.3600093633 units.
c is each of the congruent lengths.
d = 60-15
d = 45 units.
tane = 15/40
e = atan(3/8)°
f = 90-e
f = atan(8/3)°
Therefore, the required length, ? is;
Let it be g.
g² = 21.3600093633²+45²-2*21.3600093633*45cos(atan(8/3))
g = 42.5 units.
Again, g is the required length.
