The perimeter of a quarter circle is 14.28 KM. What is the quarter circle's area?

50.27

Step-by-step explanation:

perimeter= length of arc + 2r= 14.28

length of arc= rx where x is the angle which is pi/2

radius =4

area= pi* r^2= 50.27

Circumference= 2πr

Circumference= perimeter  

14.28km= 2(3.14)r

14.28= 6.2831853072r

divide both sides by 6.2831853072

2.27= r

ANSWER: The radius is 2.27km

Hope this helps!

step-by-step explanation:

here's what happens:

1) the graph of f   = x^2 is shifted 2 units to the right.

2) the resulting graph is reflected in the x-axis, so that the parabola now opens down.

3) this final result is transformed up by 5 units.