Which is the graph of the given function?
f(1) = 3 cos(-t)

or

d

because parallelagram have all 4 angels the same size dependeing and a rectangle and square are oth parallelogram

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.