What is the length of the blue segment in Oo below?
O
A. 8.53 units
8.53
O
B. 12.48 units
O
C. 6.24 units
O
D. 17.06 units

I want to say is B. 12.48 units

Step-by-step explanation:

what shape is

m∠abd = m∠dbc

step-by-step explanation:

given : ab bisects ∠dbc

as we know that bisection means ab divides   ∠dbc   in two equal angles named as   ∠dba and   ∠abc

so, m∠abd = m∠dbc  

because ab bisects ∠dbc.

hence , the first statement m∠abd = m∠dbc is true.