1) Circumference of a circle? a) π x Diameter b) π x radius2 c) π x Diameter2 d) π x Radius 2) Area of a circle? a) π x Diameter b) π x radius2 c) π x Diameter2 d) π x Radius 3) The full width of a circle is ... a) Radius b) Diameter c) Circumference d) Tangent 4) Half the width of a circle is ... a) Radius b) Diameter c) Circumference d) Tangent 5) The outside (perimeter) of a circle is called ... a) Radius b) Diameter c) Circumference d) Tangent 6) Circle with a Diameter of 8cm. What is the Circumference? a) 8π b) 64π c) 4π d) 16π 7) Circle with a Diameter of 6cm. What is the Circumference? a) 3π b) 9π c) 6π d) 36π 8) Circle with a Radius of 4cm. What is the Area? a) 8π b) 64π c) 4π d) 16π 9) Circle with a Radius of 3cm. What is the Area? a) 6π b) 36π c) 3π d) 9π

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