Answer:
20x^2
Step-by-step explanation:

Its A (1st one)
"<span>The interior angles of both a regular and irregular pentagon have a sum of 540o. "
</span>Regardless of it's shape if it's a polygon with 5 sides (whether is it regular or not) the interior angles with have the sum of 540 degrees.
Answer:

Step-by-step explanation:
The width of the free play section is 9 feet. The length is 5+5, which equals 10.
The area is
×
.
9×10=90 feet square
<u>Hope this helps :-)</u>
Answer:
1% of 1200 is 12, so to find this we multiply 12 until we get 150
150/12 = 12.5
12.5%
9 + 60 -42x
9+60 = 69
= 69- 42x