Answer :

Given,

Radius = 7cm

Side of equilateral triangle = 14cm

Area of circle =

Area of circle =

Area of equilateral triangle =

Area of equilateral triangle =

=

We know that an equilateral triangle always subtend an angle of 60 at centre area of sector =

=

= = 25.666cm^{2}

This area is common in both the figure so,

Area of shaded region = (area of circle + area of equilateral triangle - 2×area of sector)

= (154+84.77-2×25.67)

= (238.77-51.33) = 187.44cm^{2}

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