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Radius of a Circle

A circle with...

Question

A circle with center O is shown below. The line segment OA is the ____ of the circle.

A

diameter

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B

radius

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C

chord

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D

segment

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Solution

The correct option is B
radius

The radius of a circle is a line segment joining the center of the circle to any point on the circumference of the circle.

The line segment OA is the radius of the circle.

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Q. Fill in the blanks:

(i) The diameter of a circle is .....times its radius.
(ii) The diameter of a circle is the ..... chord of the cirlce.
(iii) The diameter of a circle pass through......
(iv) A chord of a circle is a line segment with its end points on the....
(v) If we join any two points on a circle by a line segment, we obtain.... of the circle.
(vi) A radius of a circle is a line segment with one end at .... and the other end at.....
(vii) All radii of a circle are.....
(viii) The diameters of a circle are
(ix) The total number of diameters of a circle is .....
(x) Every point on a circle is .....from its centre.
(xi) A chord of a circle contains exactly ...... points of the circle.
(xii) A diameter is the longest.......
(xiii) Concentric circles are circles having.......

Q. Is a line segment connecting the center of a circle to any point on the circle itself called a radius?

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5

cm. two radii OA and OB are drawn at right angles to each other. Find the area of segments made by chord AB.

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