The diameter of a circle is a line which joins two points on the circle and also passed through the centre of the circle. (In the adjoining figure AB is a diameter of the circle; C is its centre.) - Mathematics

Question

The diameter of a circle is a line which joins two points on the circle and also passed through the centre of the circle. (In the adjoining figure AB is a diameter of the circle; C is its centre.) Express the diameter of the circle (d) in terms of its radius (r).

Sum

Solution

Diameter = AB = AC + CB = r + r = 2r

d = 2r

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Use of Variables in Common Rules

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Q 4.Q 3.Q 5.

Chapter 11: Algebra - EXERCISE 11.2 [Page 231]

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NCERT Mathematics [English] Class 6

Chapter 11 Algebra
EXERCISE 11.2 | Q 4. | Page 231

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