In a cirele with radius 5 cm, a chord is at a distance of 3 cm from the centre. The length of the chord is:

3 cm 7 cm 8 cm 4 cm

8 cm

As OR is perpendicular to PQ In Triangle ORQ, h² = b² + p² OQ² = OR² + RQ² 5² = 3² + RQ² RQ² = 25 - 9 = 16 RQ = 4 Now, PQ = 2RQ = 2 x 4 = 8 cm