Find the values of y=-5x+22
2 answers:
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Answer:
The length of the fence that encloses the park is 400 m
Step-by-step explanation:
step 1
Find the length of the square city park
we know that
The area of a square is
where
b is the length side of the square
we have
substitute and solve for b
take square root both sides
step 2
Find out the length of the fence that encloses the park
we know that
The length of the fence is equal to the perimeter of the square city park
The perimeter of the square is
we have
substitute
therefore
The length of the fence that encloses the park is 400 m
This is a 30-60-90 triangle. The short leg is given to us as 5
The long leg is equal to sqrt(3) times the short leg
long leg = sqrt(3)*(short leg)
long leg = sqrt(3)*5
long leg = 5*sqrt(3)
The base is 5. The height is 5*sqrt(3)
b = 5
h = 5*sqrt(3)
Use this to find the area
A = b*h/2
A = 5*5*sqrt(3)/2
A = 25*sqrt(3)/2
which is the exact area in terms of a radical
You can write it out as
The long leg is equal to sqrt(3) times the short leg
long leg = sqrt(3)*(short leg)
long leg = sqrt(3)*5
long leg = 5*sqrt(3)
The base is 5. The height is 5*sqrt(3)
b = 5
h = 5*sqrt(3)
Use this to find the area
A = b*h/2
A = 5*5*sqrt(3)/2
A = 25*sqrt(3)/2
which is the exact area in terms of a radical
You can write it out as