NCERT Solution Class X Mathematics Areas Related to Circles Question 6 (Ex 12.3)

Question 6:

In a circular table cover of radius 32 cm, a design is formed leaving an equilateral triangle ABC in the middle as shown in the given figure. Find the area of the design (Shaded region).  [Use π = 22/7]

Answer:

Radius (r) of circle = 32 cm

AD is the median of ΔABC.

AO = 2/3 AD = 32

AD = 48 cm

In ΔABD,

AB2 = AD2 + BD2

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