Question

The flag of Scotland is a rectangle with white

stripes as the diagonals.
In rectangle SCOT, SO = 41, and CO = 9. Find
the indicated measure.

Answer 1

OL is 1/2 of 41 =20.5

SC - a^2 + b^2 = c^2

a^2 + 9^2 = 41^2

a^2=1681 -81

a^2 = 1600

a= 40