Question

distance of PQ of a circle from the centre is 12 cm and the length of a chord is 10 cm find the diameter of the circle ​

Answer 1

Answer:

26cm

Step-by-step explanation:

OC=12cm

AC=CB=5cm( line drawn through the centre of a circle bisects a chord)

radius OA= squareroot OC²+AC²

=squareroot (12)²+(5)² = squareroot 144+25 = squareroot 169=13 cm

Diameter of a circle =2×13=26 cm

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