circle

The circle and the circumference parts

• 
• The arc is a part of the circumference.
• The circle is the area
• The circumference is the curve line.
• The centre is the point in he centre of the circle.
• The radius is a segment from the centre to the circumference.
• The diameter is a segment that cross the centre.
• The chord is a segment that cross the circle.
• Legenda: Parts of the circle

Slide 2

• 
• The circular segment is a part formed by an arc and a chord.
• The circular sector is a part formed by an arc and 2 radius.
• The semicircle is a part formed by one big arc and a diameter.

Slide 3