Question

The length of a chord 8 cm is away from the radius of the circle.The radius of the circle is 30 cm find the diameter of the circle​

Answer 1

Answer:

i think its answer is Given-

PR=30 cm is the chord of a circle which is at a distance of 8 cm from its center O.

To find out -

The radius of the circle =?

Solution-

We join OP.

Now PQ=

2

1

PR=

2

1

×30 cm =15 cm

Since the perpendicular from the centre of a circle to a chord bisects the latter.

So, in ΔOPQ, by Pythagoras theorem, we have

OP=

OQ

2

+PQ

2

=

15

2

+8

2

cm =17 cm

Answer 2

Step-by-step explanation:

The length of a chord 8 cm is away from the radius of the circle.The radius of the circle is 30 cm find the diameter of the circle.