A circle is of radius $5 c m$ . Its longest chord will be

5 c m

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8 c m

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10 c m

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15 c m

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Solution

The correct option is A $10 c m$
Diameter = longest chord
$= 2 \times r a d i u s = 2 \times 5$
$= 10 c m$
Thus, (C) is correct

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Q. If the length of longest chord of a circle is

8 c m

then find its radius.

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A circle is of radius 5cm. Its longest chord will be

The correct option is A 10cmDiameter = longest chord=2×radius=2×5=10cmThus, (C) is correct

A circle is of radius $5 c m$ . Its longest chord will be

The correct option is A $10 c m$
Diameter = longest chord
$= 2 \times r a d i u s = 2 \times 5$
$= 10 c m$
Thus, (C) is correct