In the circle shown below AB is the chord having length 8 cm and being bisected by the line OD from centre. If the radius of circle is 5 cm, then distance OD is equal to

O

is the centre of the circle having radius

5

cm.

O M

is a

⊥

on chord

A B

. If

O M = 4

cm, then the length of the chord

A B

is equal to

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Given a circle with centre O. The smallest chord PQ is of length 4 cm, largest chord AB is of length 10 cm, and chord EF is of length 7 cm. Then, the radius of the circle is

The correct option is B 5 cmThe diameter is the largest chord of a circle, so radius=12×AB=12×10 cm=5 cm.

Given a circle with centre $O .$ The smallest chord $P Q$ is of length $4$ cm, largest chord $A B$ is of length $10$ cm, and chord $E F$ is of length $7$ cm. Then, the radius of the circle is

The correct option is B $5$ cm
The diameter is the largest chord of a circle, so radius $= \frac{1}{2} \times A B = \frac{1}{2} \times 10$ cm $= 5$ cm.