Question

Fig. 13.30, the radius of the given circle, with
centre C, is 6 cm if the chord AB is 3 cm away from
the centre, calculate its length.
(ICSE)

Α.
Fig. 13.30
​

Answer 1

Answer:

6√3cm

Step-by-step explanation:

given radius of the circle: 6cm

perpendicular distance from center to chord:3cm

if we join the two ends of the chord from center u will get two right angled triangles.

apply Pythagoras theorem.

from each triangle,u should find a find base

the base of each triangle as √27

length of the chord=√27+√27

=2√27

=6√3cm