Question

The length of the chord of a circle is 8 cm and
perpendicular distance between centre and the
chord is 3 cm. Then, the radius of the circle is
equal to
​

Answer 1

Hope it will help you. . . . . . . . . . .

Answer 2

Answer:

5

Step-by-step explanation:

The line from the centre and perpendicular to the chord bisects the chord.  So:

• half the chord (length 4)
• the perpendicular line from the centre to the chord (length 3)
• the radius from the centre to and end of the chord

together form a right angled triangle with legs of length 3 and 4.  The radius is the hypotenuse with length

√( 3² + 4² ) = 5