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What do you call the perimeter of a circle?
circumference
What is the radius of the circle if the diameter is 10 cm?
5 cm
TRUE OR FALSE. Diameter is half the radius.
FALSE
TRUE OR FALSE. To get the area of a circle, multiply diameter by the radius.
FALSE
How do you get the length of the radius from a given diameter?
Divide the diameter by two.
Which part of the circle is its area?
The space/region inside.
Which part of the circle is its area?
The space/region inside.
CIRCUMFERENCE OR AREA. If I am trying to figure out how much space is inside a circular frame, I need the...
area
How do you solve for the circumference of a circle?
Multiply pi by the diameter.
The radius is 3 meters, what is its diameter?
6 meters
If the diameter is 20 inches, what is its radius?
10 inches
What is the estimated value of pi?
3.14
What do you call the line segment that connects the center and a point in the circumference of a circle?
radius
What is the diameter of the circle with a radius of 9 cm?
18 cm
How do you solve for the area of a circle?
Multiply pi by radius squared.
What is 10 squared equal to?
100
