Start with a square whose sides have length 1. Construct semicircles on two adjacent sides to form a heart shape. Circumscribe the heart with a circle, as shown below. What is the radius of the circumscribing circle?
A right trapezoid has parallel sides of 3 and 7. What is the radius of the inscribed circle, tangent to all four sides?
What is the radius of the circle?
In the diagram below, there are 4 squares and 3 areas are known. What is the radius of the circle?
A circle with radius 1 is divided into 12 congruent regions, as shown below. What is the perimeter of a single region?
Three squares are constructed on the three sides of an equilateral triangle. Each square has a side length equal to 1. A circle circumscribes the squares, as shown. What is the radius of the circle?
