Answer:

Step-by-step explanation:
we know that
The perimeter of quadrilateral PQRS is equal to the sum of its four length sides
the formula to calculate the distance between two points is equal to

we have
the vertices P(2,4), Q(2,3), R(-2,-2), and S(-2,3)
step 1
Find the distance PQ
P(2,4), Q(2,3)
substitute in the formula




step 2
Find the distance QR
Q(2,3), R(-2,-2)
substitute in the formula



step 3
Find the distance RS
R(-2,-2), and S(-2,3)
substitute in the formula



step 4
Find the distance PS
P(2,4), S(-2,3)
substitute in the formula



step 5
Find the perimeter

substitute the values



Circumference = 18.84 yards
Diameter = 6 yards
Answer:
45 children
Step-by-step explanation:
30% of 150=45
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-25 would be the answer to this problem