Question
Consider the figure on top of the next page. Write an equation fora) the blue circle,b) the red circle, andc) the green circle.d) Determine the shaded area.
Step 1
The equation for a circle with center (h,k) and radius r is (x-h)^2 + (y-k)^2 = r^2. So, the equation for the blue circle is (x-0)^2 + (y-0)^2 = 4^2, which simplifies to x^2 + y^2 = 16. b) The red circle has a center at (4,0) and a radius of 4 units. Using the Show more…
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