Question

The length of the chord is 32cm and distance of a chord
from the centre of the circle is 12cm then the diameter of
Circle is....​

Answer 1

Answer:

Hey Mate your answer is

By Pythagoras Thearom

In ∆AOB angle A is 90°

(Reason: Perpendicular drawn from the centre of the circle to the chord bisects the chord)

length of the chord= 32/2=16

(OA)²+(AB)²=(OB)²

(12)²+(16)²=(OB)²

144+256=(OB)²

400=(OB)²

OB =20cm

Now,

Diameter = radius ×2

=20×2

=40cm

Therefore the diameter is 40 cm

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