Answer:
9 cm
Step-by-step explanation:
It say ΔLMN and Δ PQR is equal
Therefore, LN is 9 cm Then PQ is 9 cm Too.
The complememtn is the angle that adds to the angle to get 90
so
the complement of angle a is b if
a+b=90
so
the comlmement of a 42 degree angle is
42+complement=90
complmement=c
42+c=90
minus 42 both sides
c=48
the measure of the complement is 48 degrees
c is the complement
