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What is the area of a circle with a radius of 28 cm Use the approximation of 22 by 7 as pie?
Area = 22/7*282 = 2464 square cm
What is the circumference of a circle if the radius is 4.4 cm?
Work it out the circumfrance of a circle is pie x the diameter!
Which is the area of a circle whose circumference is 12 pie centimeters?
If the circumference is 12*pi (not pie!) cm, then the diameter is 12 cm so that the radius = 6 cm. Then area = pi*r2 = 36*pi = 113.1 sq cm (approx).
If the circumference is 80 cm on a circle then what is the diameter?
you do 80 divided by 2 divided by (pie) 3.14 wich gives you the radius..and then times the radius by two..
What is the area of a circle with a radius of 13.25?
Main Answer: To find out the area of the circle you must square the radius. Here's the answer: I took pie as 3.141592 Area = pie x radius squared A = pie x 13.25 squared --> pie x (13.25 x 13.25) A = 551.5457455 Don't forget to put the units on (e.g. mm, cm, etc) and round to whatever number of decimal places this question asks for. Extra Info: Circumference of a circle = pie x diameter Area of a circle = pie x radius squared C herry pie's d elicious --> C = pie x d A pple pie's r 2 --> A = pie x r2
