The distance from the centre of a circle to any point on the circle is called the:, chord, Radius, Diameter, Arc, The longest chord of a circle is the:, secant, Radius, Arc, Diameter, Half of a circle is called a:, Chord, Arc, Semicircle, Segment, A line that touches the circle at exactly one point is called a:, Tangent, Secant, Chord, Diameter, The perimeter of a circle is called:, Diameter, Area, Circumference, Radius, If radius = 7 cm, what is the diameter?, 14cm, 19cm, 12cm, 11cm, The formula for the area of a circle is:, pi d, 2 pi r, r square , Pi r square .

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