Answer:
Line AC is the half of libe AB
Step-by-step explanation:
Let's define a midpoint.
Mid point it the point or line that divides a line in to two equally parts.
So if line AB = 12
The midpoint with any dimensions should be a line that divides it into two.
12/2 = 6
So the midpoint is a line that lies at the point of 6
So dimensions l of AC = 6
AC is the midpoint of AB
So it means that C i.e point C is the midpoint of line AB
making line AC the half of line AB
Answer:
z = 42
Step-by-step explanation:
z - 12 = 30
Add 12 to each side
z - 12+12 = 30+12
z = 42
Check
42 - 12 = 30
30 = 30
Assuming that the arrows pointing up is multiplication that answer would be 780mn