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Preview questions
1. What is the distance from the center of a circle to any point on its circumference called?
Diameter · Radius · Chord · Arc
2. If the radius of a circle is doubled, how does the area change?
Remains the same · Doubles · Quadruples · Halves
3. What is the relationship between the diameter and the radius of a circle?
Diameter = Radius + 1 · Diameter = 2 × Radius · Diameter = Radius/2 · Diameter = Radius × 2
4. The angle subtended by a diameter at any point on the circle is:
Acute · Obtuse · Right · Reflex
5. If a circle has a radius of 7 cm, what is its circumference?
14π cm · 21π cm · 7π cm · 28π cm
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