Circle Terms
The distance from the center of a circle to the outside, also half of the diameter
Radius
If the he Diameter of this circle is 15 cm, what´s its radius?
Radius = 7.5 cm
If the radius of a circle is 5m, what´s the diameter?
10 m
The diameter for this circle is 10 cm.Find the circumference.
C = 31.4 cm
The radius of this circle is 3. Area = ____
28.26 m2
The longest chord in a circle
Diameter
Find the radius of a circle whose diameter is 12.6 in.
radius = 6.3 in
The radius of this circle is 12.5 in., so the diameter is ___
Diameter = 25 in.
The diameter for this circle is 13 in. Circumference = ____
40.82 in.
The radius of this circle is 5, so the area is ____.
78.5 m2
Name of a line through the circle.
chord
The diameter of this circle is 27 m, so the radius is ___
13.5 m
The radius of a circle is 17.8 ft , what´s its diameter?
Diameter = 35.6 ft.
The diameter of this circle is 25 m. Circumference = ___
C = 78.5 m
The radius of this circle is 21 m
Area = 1384.74 m2
It is the total amount of space inside of a circle
Area
The diameter of this circle is 437 ft. What´s the radius?
The radius is 218.5 ft.
The radius of a circle is 145.37 m, what´s its diameter?
Diameter = 290.74 m
The radius for this circle is 45 cm
C = 282.6 cm
The radius of this circle is 52 in
Area = 8,490.56 in2
It´s vavule is 3.14 or 22/7
PI
The diameter of this circle is 0.325 m, so the radius is ___
the radius is 0.1625 m.
The circumference of a circle is 21.98 m, what´s its diameter?
Diameter = 7 m
The radius of this circle is 83.5 m. What is its circumference?
C = 524.38 m
The radius of this circle is 69.7 ft, find the area.
Area = 15, 254.4026 ft2