The length of BC is 22.7
What is a right angled triangle?
A right angled triangle is one in which of the the angles is 90 degrees.
in the triangle AB = adjacent, BC = hypotenuse Ac = opposite
cos 66 = 9.2/BC
BC = 9.2/cos 66 = 9.2/0.406 = 22.7
In conclusion, the length of side BC is 22.7
Learn more about right-angled triangles: 64787