The diagram shows a track composed of a rectangle with a semicircle on each end. The area of the rectangle is 12,800 square mete
rs. What is the perimeter of the track? Use 3.14 for (pie symbol)
1 answer:
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Answer:
Option C
Step-by-step explanation:
step 1
Find the slope of AB
we have
A(-3,-1) and B(4,4)
The slope m is equal to
step 2
Find the slope of BC
we know that
If two lines are perpendicular, then the product of their slopes is equal to -1
so
we have
substitute
step 3
Find the equation of the line into slope point form
we have
substitute
Multiply by 5 both sides
Multiply by -1 both sides