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# CBSE Class 9 Answered

please solve this question
Asked by ss8121426 | 28 May, 2020, 09:53: AM
Question: In the given figure, three circles each of radius 2 cm touch each other externally. These circles are circumscribed by a circle of radius x. Find the value of x and area of the shaded region.
Solution:
Triangle ABC is an equilateral triangle with each side = 4 cm
Let O be the centre of the larger circle and X be the point on it such that O-B-X.
Take D as the mid-point of BC and join OB and BD
Triangle OBD is a right triangle right angled at D and angle OBD = 45o
Answered by Renu Varma | 28 May, 2020, 11:04: AM

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