How to Draw a Circle.
Spend some time familiarizing yourself with the tools that are available in this applet.
Draw Radius and Diameter of a Circle.
Name the Radius and Diameter of a Circle.
Here is a circle with center H and some line segments and curves joining points on the circle.
(1.) Write down examples of a diameter to the circle. Explain your reasoning.
(2.) Write down examples of a radius to the circle. Explain your reasoning.
Sort these pictures into two groups.
Explain why you sorted the objects like you did.
On January 3rd, Earth is 147,500,000 kilometers away from the Sun. On July 4th, Earth is 152,500,000 kilometers away from the Sun. The Sun has a radius of about 865,000 kilometers.
Could Earth’s orbit be a circle with some point in the Sun as its center? Explain your reasoning.
Lin measured the diameter of a circle in two different directions. Measuring vertically, she got 3.5 cm, and measuring horizontally, she got 3.6 cm. Explain some possible reasons why these measurements differ.