Circle Terms
what is pi?
the middle of a circle
what is the centre?
the radius of this circle is 5
a circle with a circumference of 31.42 (2dp)
the diameter of this circle is 10
a circle with a circumference of 31.42 (2dp)
the radius of this circle is 29.8
a circle with a circumference of 187.24 (2dp)
what is a sector?
the "perimeter" of any circle
the radius of this circle is 10
a circle with a circumference of 62.83 (2dp)
the diameter of this circle is 15
a circle with a circumference of 47.12 (2dp)
the diameter of this circle is 123
a circle with a circumference of 386.42 (2dp)
a line that goes from one edge of the circle to another, but not through the centre
what is a chord?
half of the diameter
what is the radius?
the radius of this circle is 15.7
a circle with a circumference of 98.65 (2dp)
The diameter of this circle is 32.8
a circle with a circumference of 103.04 (2dp)
the radius of this circle is 3.14159
a circle with a circumference of 19.74 (2dp)
distance from the centre of a circle to an edge
What is the radius?
double the radius
what is the diameter?
the radius of this circle is 18.84
a circle with a circumference of 118.38 (2dp)
the diameter of this circle is 17.92
a circle with a circumference of 56.30 (2dp)
the diameter of this circle is 12.34
a circle with a circumference of 38.77 (2dp)
the longest chord
what is the diameter?
shaded in section below a chord
what is a segment?
the radius of this circle is 194.68
a circle with a circumference of 1223.21 (2dp)
the diameter of this circle is 328.5
a circle with a circumference of 1032.01 (2dp)
a chord in this circle is 10cm
not enough information to find the circumference