alleryStart learning →Fill the circle geometry board
Read exercise and reference answers
- Clues and terms
- Clue
- A portion of the circumference of a circle.
- Item
- Arc
- Clue
- The perimeter or boundary line of a circle.
- Item
- Circumference
- Clue
- Any straight line from the centre of a circle out to a point on its boundary.
- Item
- Radius
- Clue
- A special chord that passes through the centre of the circle.
- Item
- Diameter
- Clue
- The part of a circle that a chord cuts off.
- Item
- Segment
- Clue
- A straight line that touches a circle at only one point.
- Item
- Tangent
- Clue
- What a tangent forms with the radius drawn at the point of contact.
- Item
- Right angle
- Clue
- A four sided figure with all four of its sides being chords of one circle.
- Item
- Cyclic quad
- Clue
- A quadrilateral with both pairs of opposite sides parallel.
- Item
- Parallelogram
- Instructions
- A clue is called out. Tap the cell it names. Three marks in a line wins.
_Source: Siyavula Mathematics Grade 11 (CC BY 4.0), Chapter 8 Euclidean geometry_