Question

The length of a chord PQ of a circle with its centre O is 4cm and the distance of PQ from the point O is 2.1 cm. Let us write by calculating, the length of its diameter. ​

Answer 1

Answer:

Given PQ = 4cm, Distance from the Center is 2,1cm

PQ = 2 PD

Perpendicular from the center of the circle to any Chord bisects it in two line segments

Step-by-step explanation:

PD

⇒ PD = 2cm

In O PD , Using Pythagoras Theorem

⇒ OD2 + PD 2 = OP2

⇒ OP2 = 2.12 + 22

⇒ OP2 = 8.41

⇒ OP = 2.9cm

Answer 2

Answer:

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