Question

3. The diameter of a circle is 82 cm and the length
of a chord is 80 cm. Calculate the distance of
the chord from the centre of the circle.​

Answer 1

Answer:

58

Step-by-step explanation:

radiua=2xdiameter.....

so,42÷2=radius

radius=40.........

now chord will be half........reason, perpendicular drawn from the center of the circle towards the chord bisects the chord ......

now use pytha goras theorem

x2=radius2+chord2

=42X42+40X40

=1764+1600

x2=3364

therefore x root =58