Answer:
In terms of Pi: 
km
Exact value (rounded): 15.42477 km
Approximated (3.14): 15.42 km
Step-by-step explanation:
Hello!
A semicircle's perimeter can be found using the formula: 
We can plug in the values to solve for the perimeter.
<h3>Solve</h3>
In terms of Pi, it is ,
Exact value of Pi, it is 15.42477
Approximation of Pi (3.14), it is = 15.42
Answer:
I think it's 6 (square root) 2
Answer:
A statement that helps to condition
Step-by-step explanation:
The y-axis<span> is the point (-x,</span>y<span>). </span>Reflect over the y<span> = x: When you </span>reflect<span> a point </span>across<span> the line </span>y<span> = x, the x-coordinate and </span>y<span>-coordinate change places. If you </span>reflect over<span> the line </span>y<span> = -x, the x-coordinate and </span>y<span>-coordinate change places and are negated (the signs are changed)</span>
