All circles have exactly the same shape, but their sizes are affected by the length of the radius. A line segment that passes through a circle’s center connecting two points on the circle is called a ...All circles have exactly the same shape, but their sizes are affected by the length of the radius. A line segment that passes through a circle’s center connecting two points on the circle is called a diameter. The diameter is twice as long as the radius. The size of a circle can be measured in two ways. The distance around a circle is called its circumference. Archimedes discovered that for circles of all different sizes, dividing the circumference by the diameter always gives the same number.
All circles have exactly the same shape, but their sizes are affected by the length of the radius. A line segment that passes through a circle’s center connecting two points on the circle is called a ...All circles have exactly the same shape, but their sizes are affected by the length of the radius. A line segment that passes through a circle’s center connecting two points on the circle is called a diameter. The diameter is twice as long as the radius. The size of a circle can be measured in two ways. The distance around a circle is called its circumference. Archimedes discovered that for circles of all different sizes, dividing the circumference by the diameter always gives the same number.