A circle with a radius of 20cm will have a diameter of
40cm
100
A circle with a diameter of 10 cm will have a radius of ?
5 cm
100
What is the sum of all central angles in one circle?
360 degrees
100
A circle has a diameter of 6 cm. What is the circumference?
18.84 cm
100
define a radius
a line that connects the centre of the circle with the outside edge
200
A circle with a radius of 6.2km will have a diameter of
12.4 km
200
A circle with a diameter of 12.2 km will have a radius of?
6.1 km
200
True or False: An angle with a vertex not on the centre of the circle is a central angle.
False.
200
A circle with a radius of 2 km will have a circumference of what?
12.56 km
200
define circumference
the length around the perimeter of the circle
300
A circle with a radius of 16.34mm will have a diameter of
32.68mm
300
A circle with a diameter of 100.86 mm will have a radius of?
50.43 mm
300
A circle divided into 10 equal sections would have central angles all equal to?
36 degrees
300
True or False: A circle with a diameter of 20cm will have a circumference of 62.8cm
True
300
what is the value of pi?
3.14
400
The definition of a radius is
Any line which runs from the centre of a circle to the outside edge of the circle
400
The definition of a diameter is?
A line that passes through the centre of the circle and touches the outside edge at two points.
400
A circle divided into 6 equal sections would have central angles all equal to?
60 degrees
400
The formula for a circles circumference is:
C=πd or C=2πr
400
how is a compass used?
1)set distance between the two points to the length of the radius you wish.
2) set the metal point into the paper
3) draw your circle
500
true or false If you measure the radius at different points of a circle you will get different measurements
False
500
True or False: a diameter of a circle is equal to two times the radius of the same circle.
True
500
A circle has 3 central angles in total. One central angle is 180 degrees, and another central angle is 90 degrees. What is the measure of its remaining angle?
90 degrees
500
A circle with a circumference of 40.82cm would have a diameter of?