B . side is a 8.5 inches long and side is 7 inches long
ANSWER
![96 \sqrt{3} {cm}^{2}](https://tex.z-dn.net/?f=%2096%20%5Csqrt%7B3%7D%20%20%7Bcm%7D%5E%7B2%7D%20)
EXPLANATION
The area of a regular polygon is
![Area= \frac{1}{2} ap](https://tex.z-dn.net/?f=Area%3D%20%5Cfrac%7B1%7D%7B2%7D%20ap)
where 'a' is the apothem of the polygon and 'p' is the perimeter of the polygon.
From the diagram,
![\sin(60) = \frac{a}{8}](https://tex.z-dn.net/?f=%20%5Csin%2860%29%20%20%3D%20%20%5Cfrac%7Ba%7D%7B8%7D%20)
a=8sin(60)
![a = 4 \sqrt{3}](https://tex.z-dn.net/?f=a%20%3D%204%20%5Csqrt%7B3%7D%20)
![\cos(60) = \frac{l}{8}](https://tex.z-dn.net/?f=%20%5Ccos%2860%29%20%20%3D%20%20%5Cfrac%7Bl%7D%7B8%7D%20)
![l = 8 \cos(60)](https://tex.z-dn.net/?f=l%20%3D%208%20%5Ccos%2860%29%20)
![l = 4](https://tex.z-dn.net/?f=l%20%3D%204)
The length of one side of the hexagon is 2×4=8.
The perimeter of the hexagon is
p=6×8=48
The area of the hexagon is
![= \frac{1}{2} \times 4 \sqrt{3} \times 48](https://tex.z-dn.net/?f=%20%3D%20%20%5Cfrac%7B1%7D%7B2%7D%20%20%5Ctimes%204%20%5Csqrt%7B3%7D%20%20%5Ctimes%2048)
![= 96 \sqrt{3} {cm}^{2}](https://tex.z-dn.net/?f=%20%3D%2096%20%5Csqrt%7B3%7D%20%20%7Bcm%7D%5E%7B2%7D%20)
Answer:
Oxygen; 34.01°C
Step-by-step explanation:
The oxygen freezes first as it has a higher (warmer) freezing point. For both to freeze, the temperature must drop a further 34.01°C as:
-218.79 - (-252.8)
= 252.8 - 218.79
= 34.01
Answer: Distributive.
Step-by-step explanation: Using the distributive property, you would expand the equation to 56 + 42x.