jammama21 jammama21
  • 25-03-2017
  • Mathematics
contestada

what is the area of a circle with a circumference of 11 pi

Respuesta :

apologiabiology
apologiabiology apologiabiology
  • 25-03-2017
circumference=2pir
area=pir^2

circumference=2pir=11pi
2pir=11pi
divide by pi
2r=11
divide by 2
r=5.5

subsitute
area=pir^2
area=pi5.5^2
area=pi30.25
area=30.25pi suqare units
aprox with pi=3.14
area=94.985 suqare units








Answer Link

Otras preguntas

can anyone help me out. i dont know what 9x9 equals. what is the prouduct?
if angle RZT=110, angle RZS=3s, and angle TZS=8s, what are angle RZS and angle TZS?
Approximate 5 irrational number to two decimal places
A football team gained 9 yards on one play and then lost 22 yards on the next. Write a sum of integers to find the overall change in field position?
A car traveling at 22.4 m/s skids to a stop in 2.55s determine the skidding distance of the car ?
fran swims at a speed of 2.4 mph in still water, the river flows at a speed of 0.6mp, how long will it take fran to swim 2.7mi upstream? and 2.7mi downstream?
How do you find the derivative of y=ln(cos(x))y=ln(cos(x)) ?
The cost of mailing a DVD in an envelope by express mail is equal to the cost of mailing a DVD in a box by priority mail. What is the weight of the DVD with its
What percent of 240 is 32?
What percent of 240 is 32?