Oh, dude, expressing "r" in terms of "c" and "pi" is like a walk in the park... if the park was full of math nerds. You just divide "c" by 2pi, and boom, there's your radius. Easy peasy, lemon squeezy.
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Well, isn't that just a happy little math question! To express r in terms of c and pi, you can use the formula for the circumference of a circle: c = 2 * pi * r. To solve for r, you simply divide both sides by 2pi, giving you r = c / (2 * pi). Just like painting a beautiful landscape, sometimes all it takes is a few simple brushstrokes to reveal the true beauty within!
Well, honey, expressing "r" in terms of "c" and "pi" is as easy as pie! Just divide "c" by 2pi, and there you have it - r = c / (2pi). It's as simple as that, darling.
The circumference C = 2 r times pi C = 76 inches times pi. pi = 3.141592654...
Circle area = pi*r 2 r= D/2 Circle area = pi*(D/2) 2 = (pi/4)*D 2
By using the well-known formula, A = pi x r2, and expressing the radius in terms of the circumference, r = c / (2 x pi). Replace in the first formula, and simplify. f
Using the circumference, you would find the radius first. The circumference C = 2*Pi*r where r is the radius. Then, the area of the circle = Pi*r^2.
The formula where C=circumference, R=radius is C = 2 pi R Since C = 16 pi inches and 16 pi = 2 pi R we can solve for R and get R= 16 pi /2 pi = 8 Therefore the Radius is 8 inches.