Parts of a circle

Grade 4 · Shapes and angles

A circle is drawn with one part picked out, and the student names it: radius, diameter, chord, arc, sector, segment or circumference.

The wrong choices are the parts it's usually confused with (sector and segment, chord and diameter, arc and circumference), and the part is drawn at a different angle each time.

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What changes each time

• Seven parts of a circle
• Drawn at any angle
• Four names to choose from

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