Answer:
K(-4,8) is the ortho center.
Step-by-step explanation:
In a right angled triangle, The vertex of the right angle is the ortho center.
Here we are given
J(-4,-1), K(-4,8) & L(2,8)
Using distance formula we get



So we can say that

By converse of pythagorean theorem we get

Hence the Vertex of the right angle is K(-4,8)
K(-4,8) is the ortho center.
Step-by-step explanation:
circumference= 3.142*diameter
Diameter of main Street park is 30
Diameter of uptown park is 16
3.142*30=94.26
3.142*16=30.272
94.26-30.272=43.988
round off to tenth =44.0km
0.7 is 10 times as much as 0.70