Question

In a circle of radius 5cm the distance of a chordof length 8cm from the centre is

Answer 1

radius = 5cm

l(chord) = 8cm

1/2 l(chord)=4cm

Let x be the distance of chord from centre

by pythagoras theorem,

(4)² + x² = (5)²

16 +x² =25

x²=9

∴x=3cm