Answer: It can be calculated by using the formula of perimeter and by adding four sides
1) Perimeter= 2(L+B)= 8n+12
2) Perimeter= L+L+L+L= 4L= 8n+12
Step-by-step explanation:
As it is a square playground all its sides are equal
Perimeter of the sidewalk = 2(L+B)= 2(2n+3+0.5)= 2(2n+3.5)= 4n+7
Perimeter of the square playground= <em><u>2(L+B)</u></em>= 2(2n+3+2n+3)
<em>2(4n+6)= 8n+12-------------------------A</em>
Perimeter of the square playground<u><em>= L+L+L+L=4L</em></u> 42n+3+2n+3+2n+3+2n+3=<u><em>4(2n+3)= 8n+12------------------------B</em></u>

<h2>
Explanation:</h2>
In order to solve this problem, let's remember the point-slope form of the equation of a line:

We know two points:

So:

So this is a constant line (slope equals zero). Therefore, every point has a y-coordinate
. In other words, the equation is:

<h2>Learn more:</h2>
Equation of lines: brainly.com/question/13015874
#LearnWithBrainly
Answer:
The minor arc HK is 60 degrees
Step-by-step explanation:
see the attached figure to better understand the problem
we know that
The inscribed angle is half that of the arc it comprises.
so

we have

substitute the given value


Remember that the measure of the minor arc must be less than 180 degrees
therefore
The minor arc HK is 60 degrees
Answer:
Approximately 2.83
Step-by-step explanation: