Question

What is the length of BC? A. 2.0 B. 2.1 C. 2.55 D. 2.75

Answer 1

I hope this helps you

Answer 2

AB is the hyp
AC is the adj 
BC is the opp. 

You can find the BC by using SOHAHTOA
we need to know the opp and have the adj and an angle.. we can use TAN
so TAN(23) = BC/6 
BC = 6 x Tan(23) 
BC = 2.55 
so the answer's C.