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What is the area of a circle with a radius of 10 in using 3.14 for pi?
Using 3.14 as Pi the area of circle is: 314.0
How do you get the circumference out of the area?
you divide by pi (3.14) then take the square root, then multiply by 2 and multiply by pi (3.14)...in that order i.e. if you have a circle with area of 314 square inches, you take the 314 and divide by 3.14...you get 100...then you take the square root of 100...you get 10...then you multiply by 2...you get 20...then you multply by 3.14...you get 62.8 inches...thats the circumference of a circle with an area of 314 square inches
What is the radius of a circle that has a circumference of 314 inches?
Approximatly 50inches
What is the area of a circle whose radius is 10cm?
The area is 314 cm2
If the area of a circle is 314 square inches what is the circumference of the circle?
62.8 inches. the formula for a circle's area is a = pi x r squared. substitute 3.14 for pi and 314 for a. 314 = 3.14 x r squared (divide both sides by 3.14) v 100 = r squared (find the square root of both sides) v r = positive or negative 10 . since it stands for the radius of a circle, it has to be positive. now that you know the circle's radius, you can solve the circumference formula, c = 2 x pi x r. c = 2 x 3.14 x 10 c = 62.8
