Question

ALMN is an equilateral triangle, LN 14 cm. As shown in the figure
three sectors are drawn with vertices as centres and radius Tem
Find A ALMN )) Area of any one of he sectors
6) Area of the shaded portion​

Answer 1

radius taken as= 7cm not 10

∆LMN is equilateral .

consider points X,Y and Z.

1) side of the equilateral triangle = LM = 14cm.

Area of the equilateral triangle =√3/4×side^2

A(∆LMN)=√3/4× 14^2

=√3/4×196

=√3×49

=1.73×49. (√3=1.73)

A(∆LMN)=84.87cm^2

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