Where are the two angles located if they are corresponding? Both are interior O Both are exterior O One interior, one exterior O We can not know this.

because they could drop even lower..

the one below it is a function

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.