Question

Diameter of a circle is 26cm and length of one of its chord is 10cm.Find the
distance of the chord from the chord from the centre of the circle.
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Answer 1

Answer:

I think 20 I am not sure about it

Answer 2

Answer:

5

Step-by-step explanation:

Diameter = 26 cm, Radius = 13 cm

In the circle, draw a chord and 2 radius' to get an isosceles triangle. You'll get something like this.

The distance were looking for is OM. Now focus on triangle OMB. It is a right angled triangle where OB = 13 cm and MB = 12 cm.

Using the pythagoras theorem,

OM² = OB² - MB²

OM² = OB² - MB²

OM² = 13² - 12²

OM² = 25

OM =5