1. What do you call the given or fixed point in the circle?
Center is a fixed point in the circle while radius is the line segment from the fixed point to any point on the circle.
This means that center and radius defines a circle.
2. What do we call ?
Diameter is a special type of chord. It is a line segment in which both its endpoints are on the circle, defines a chord, which passes through the center of the circle.
3. What do we call ?
Angle is formed by two rays that has a common endpoint, vertex. Central angle has its vertex in the center and the legs are the radii (plural form of radius) that intersects with the two distinct points on the circle.
4. Which of the following is a semi-circle?
Diameter divides the circle in to two equal parts. Such parts are called semi-circles. Each of them measures half the circle, thus, 180°.
5. If the diameter of a circle measures 14 m, what is the measure of its radius?
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ANSWERS:
1. What do you call the given or fixed point in the circle?
2. What do we call
?
3. What do we call
?
4. Which of the following is a semi-circle?
5. If the diameter of a circle measures 14 m, what is the measure of its radius?