Three semicircles are drawn as shown in the figure.

(a) In the figure (i) given below, ABCD is a rectangle, AB = 14 cm and BC = 7 cm. Taking DC, BC and AD as diameters, three semicircles are drawn as shown in the figure. Find the area of the shaded portion.
ML Aggarwal Class 9 Solutions for ICSE Maths Chapter 16 Mensuration 16.3 Q30.1
(b) In the figure (ii) given below, O is the centre of a circle with AC = 24 cm, AB = 7 cm and ∠BOD = 90°. Find the area of the shaded region. (Use π = 3.14).
ML Aggarwal Class 9 Solutions for ICSE Maths Chapter 16 Mensuration 16.3 Q30.2

Solution:

ML Aggarwal Class 9 Solutions for ICSE Maths Chapter 16 Mensuration 16.3 Q30.3
ML Aggarwal Class 9 Solutions for ICSE Maths Chapter 16 Mensuration 16.3 Q30.4
ML Aggarwal Class 9 Solutions for ICSE Maths Chapter 16 Mensuration 16.3 Q30.5
ML Aggarwal Class 9 Solutions for ICSE Maths Chapter 16 Mensuration 16.3 Q30.6

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