Answer:
8 arrangement
Step-by-step explanation:
2 white balloons and 3 red balloons for every arrangement
Try this option:
note, that distance between the parallel sides is shown via formula of area.
If it is possible, check the arithmetic.
X would be the absolute value of 10 or -10 since they both are 10 units from 0 so it can be x=l10l or x=l-10l, they both equal 10
For the largest area, half the fence is used parallel to the river, and the other half is used for the two ends of the rectangular space.
The dimensions are 475 m by 237.5 m.
_____
Let x represent the length along the river. Then the area (A) is found as
.. A = x*(950 -x)/2
This equation describes a parabola with its vertex (maximum) halfway between the zeros of x=0 and x=950. That is, the maximum area is achieved when half the fence is used parallel to the river.
A straight line is 180°. 180°-135°=55°, so x=55°, which is an acute angle because it is less than 90°.