Answer:
I am pretty sure its the first one
Answer:
x+9
Step-by-step explanation:
the perimeter of any polygon is the sum of all the sides
So we have an equation:
2w=12-4w
Firstly, let's simplify, and divide all terms by 2:
w=6-2w
Now, we add 2w over to the other side:
3w=6
And finally, we divide both sides by 3:
w=2
Hope this helps!
The equation for surface area is:
. To get r, you must use Pythagorean theorem. r is found to be 45. This means after you plug it in, you get about
13571.68
