Answer:
9 1/2
Step-by-step explanation:
9 and a half
Answer:
12a^3+6a^2+6a+36
Step-by-step explanation:
Sana makatulong!
Getting the central area of a polygon is not possible. Probably the question refers to the central angle. In a a regular polygon, getting the central angle is that you need to use the formula.
Central Angle of a polygon = 360 degrees / number of sides of a polygon.
Why 360 degrees? Because, a circle has a total of 360 degrees. And a circle is a polygon with no sides.
3a(4a²-5a+12)
12a³-15a²+36a
~Hope this helped!~