The area of the rectangular pen is 10,000 m² and the area of the circular pen is 12,738.95 m².
For the rectangular pen, we want the sides to be congruent. To minimize perimeter and maximize area, the figure needs to be equilateral.
400/4 = 100 m for each side
This means that the area is 100(100) = 10,000 m².
If the pen is circular, this means the circumference is 400 m. Circumference is given by the formula C=πd:
400 = 3.14d
Divide both sides by 3.14:
400/3.14 = 3.14d/3.14
127.389 = d
The radius is half of the diameter:
r = 127.389/2 = 63.6945
The area of the circle is given by A=πr²:
A=3.14(63.6945)² = 12738.9465 ≈ 12738.95 m²
Answer:

Step-by-step explanation:


9a = 7
a= 7/9
Hope this helps ^-^
Answer:
46
Step-by-step explanation:
x +3x+5x - 54 = 360
x +3x+5x = 360 + 54
9x = 414
x= 46
Answer:
it would be B
Step-by-step explanation:
it is B because when you add 1.5 to 8 you get 9.5. when you add 1.5 to 12 you get 13.5. and when you add 1.5 to 16 you get 17.5.
Answer:
The second option
Step-by-step explanation:
Please find attached the complete question in the attached image
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