The diagram below shows a park divided into various regions. The number in each region is the region’s perimeter in km. What is the perimeter of the entire park? That is, what the length of the curve of the boundary?
A circle with radius 1 is divided into 12 congruent regions, as shown below. What is the perimeter of a single region?
A unit circle is divided into 12 congruent regions, as shown. What is the perimeter of one of these regions?
The diagram shows a sphere with center O that contains a cone whose diameter AB is equal to its height CM. What is the ratio of the cone’s volume to the sphere’s volume?
The red region in the diagram is enclosed by 4 quarter-circles. What is its area?
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.
