Martina wants to replace the broken fence on the north side of her yard. If each unit represents 10 feet, how many feet of fencing
does she need?
dio
(-6,3)
(2,3)
(-6,-2)
(2,-2)
90 feet
60 feet
80 feet

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.