Question

A chord of a circle of length is 6cm and it is at a distance of 4cm from the centre.Find the radius of circle​

Answer 1

Answer:

Radius of circle is 5cm

Step-by-step explanation:

In triangle ACO

Oc perpendicular to AB

By Pythagoras thm

AO x Ao = oc x oc + ac x act

Ao x ao =4 x 4 + 3 x3 ( half of chord)

Ao x ao =16 +9

AOxAO =25

AO = 5

Radius of circle is 5 cm

Answer 2

Answer:

The ans can be 5

Step-by-step explanation:

l of cord = 6cm

then draw the distance of cord to the centre of circle 4cm as it's perpendicular bisector .

Then draw a triangle OBA as shown in the fig

so, we can say

4^2 +3^2=hyp^2

16+9

=25

OA=root 25 =5cm

I am not sure about the ans