Selina Concise Mathematics Class 9 ICSE Solutions Circle

Selina ICSE Solutions for Class 9 Maths Chapter 17 Circle

Exercise 17(A)

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Let O be the centre of the circle and AB and CD be the two parallel chords of length 30 cm and 16 cm respectively.
Drop OE and OF perpendicular on AB and CD from the centre O.

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Since the distance between the chords is greater than the radius of the circle (15 cm), so the chords will be on the opposite sides of the centre.

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Exercise 17(B)

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Exercise 17(C)

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As given that AB is the side of a pentagon the angle subtended by each arm of the pentagon at

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Exercise 17(D)

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