trap 1
What is a circle?
A round 2 dimensional shape that looks like an O.
A shape that forms half a circle.
semicircle
The region between a chord and the part of the circumference it joins.
a segment
The volume of a cube with 8cm.
512 cubic cm
The number of degrees in a circle.
360
The line or perimeter around the outside of a circle .
the circumference
A straight line joining two points on a circle.
a chord
The radius of this circle is 25 cm.
50cm
The diameter of the circle is 50 cm.
25cm
The number of degrees in a semicircle.
180
A straight line that passes from one side of a circle to the other through the center.
the diameter
An example of the longest possible chord.
the diameter
The diameter is two times this.
the radius
The longest chord of the circle is 20cm.
10cm
The volume of a cuboid with length is 7cm, width is 4cm, height is 8 cm.
224 cubic cm
A straight line from the center of a circle to the edge.
the radius
3.14 15926……
∏
The surface area of a cuboid with length is 6cm, width is 4cm and height is 5cm.
148 square cm
The distance from the center to the circumference is 40cm.
40cm
The most important circle invention in history.
the wheel
the surface area of a cube with 5cm width
150 square cm
The length of the longest chord in the circle is 10cm.
10cm
The radius is used to measure these.
circumference and area
Pi is used to measure these.
area and circumference.