diameter = 2 x radius of circle
arc: a curved line that is part of the circumference of a circle
chord: a line segment within a circle that touches 2 points on the circle.
circumference: the distance around the circle.
diameter: the longest distance from one end of a circle to the other.
origin: the center of the circle
pi (): A number, 3.141592..., equal to (the circumference) / (the diameter) of any circle.
radius: distance from center of circle to any point on it.
sector: is like a slice of pie (a circle wedge).
tangent of circle: a line perpendicular to the radius that touches ONLY one point on the circle.
Circumference of Circle = PI x diameter = 2 PI x radius
where PI = = 3.141592...
Area of Circle:
area = PI r2
In science, we will finish up our research essays about biomes. I am so excited to begin reading you essays and learn all the great facts you've discovered! Remember to use the cover sheet rubric to be sure you've included all the requirements for the assignment. The essay will be due this Friday. Friday will also be the day we have our test on climate zones and biomes. We will create a study booklet on Monday to help you prepare. You will also need to review the notes I gave you last Monday. You can find it in THIS blog post.
Happy Super Bowl Sunday!