Answer:
Second option: 4 cm and 7 cm.
Step-by-step explanation:
A Parallelogram is defined as a type of Quadrilateral, whose opposite sides are parallel and have equal lenght.
Since the opposite sides
and
have the same lenght, then:

Now you have to solve for "n":
Add 6 to both sides of the equation.
Subtract 3n to both sides of the equation:

Divide both sides of the equation by 2:

To know the lenght of two adjacent sides, susbtitute
into the third side
and into one of the the sides that are opposite to eache other. Then:

Calculate circumference. You can do the math mentally with area & perimeter,but circumference is much more complex
Answer:
42 is your answer if there is -5x
Step-by-step explanation:
when x=-4
x²-5x+6=(-4)²-5×-4+6=16+20+6=42
Radius is 5 cm. is the answer
+
there u go if that helps u can copy and paste it