A unit circle is divided into 12 congruent regions, as shown. What is the perimeter of one of these regions?
A circle with radius 1 is divided into 12 congruent regions, as shown below. What is the perimeter of a single region?
A square with side length 1 is divided into 4 congruent right triangles, as shown, and a square in the center. Inscribe a circle in each triangle and in the center square. If all 5 circles are congruent, what is the radius of each circle?
7 non-overlapping unit circles are inscribed inside a large circle as shown below. Find the area of the shaded region?
Three circles of unit radius and touching each other. What is max possible area of blue circle as shown in image? And what about red circles?
A rectangle of perimeter 44 is partitioned into 5 congruent rectangles as indicated in the diagram. What would be the perimeter of each of the congruent rectangle.
